Model designation and serial numbers.
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  1. #1
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    Model designation and serial numbers.

    I was reading the Marlin Bible (Marlin Firearms by Brophy) on page 629 it indicates that from 1948 through 1968 the Serial Numbers were pre-fixed using a letter. An example: 1948 was E and 1968 was AD.

    To comply with the new federal firearms law of 1968 Marlin adopted a system of an eight-digit number, with the first two digits identifying the year of production.

    From 1969 to 1972, the first two digits of the serial number were the last two digits for the year. For example: 1969 started with 69000000.

    My questions are.

    If the serial number production year of 1968 was pre-fixed by using the letters AD and the 1969 production year started with 69000000.

    Why does my 336 serial number start with 68 951XX.

    Also I cannot find in the book where they refer to a Model 336RC. On page 250 it indicates that from 1948 – 1983 the carbine was designated 336C.

    I have a Carbine: Model 336RC with the Serial Number starting with 68 951XX.

    Is this gun unusual are what?

    Someone help me out.

    It would be interesting to see if the 1968 catalog referenced a Model RC.

    djh


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    Re: Model designation and serial numbers.

    The only thing I know is that the lots of 336's were stamped RC until 68 or 69 I think. Is your serial number on the top tang or the lower tang? After the Gun Control act of 68 all serial numbers were moved to the top tang so it couldn't be removed from the receiver. If your number is on the top maybe it is a late production 68 built after the law went into effect. You never know what went on with them.

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    Re: Model designation and serial numbers.

    The serial number is on the lower tang on this one.

    I just wonder why Brophy did not list the Model RC or mention it in the book. I guess we will never know.

    I found part of the answer.

    Marlin 336 Year of Manufacture
    The following table can be used to date the year of manufacture of a Marlin 336. It is also valid for determining most other Marlin firearm build dates from 1946 to the present.

    Marlin year of manufacture maybe determined from the following table of letter/numeral prefixs to the serial number:

    Date Prefix(s)
    1946 C
    1947 D
    1948 E
    1949 F
    1950 G
    1951 H
    1952 J
    1953 K
    1954 L
    1955 M
    Date Prefix(s)
    1956 N
    1957 P
    1958 R
    1959 S
    1960 T
    1961 U
    1962 V
    1963 W
    1964 Y, Z
    1965 AA
    Date Prefix(s)
    1966 AB
    1967 AC
    1968 AD, 68
    1969 69
    1970 70
    1971 71
    1972 72


    Starting in 1973, the year of manufacture can be determined by subtracting the first two digits of the serial number from 100: Example: SN 2512345 would have been made in 1975 [100 - 25 = 75].

    This chart indicates that in 1968 it could have either the AD or 68 pre-fix.

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    Re: Model designation and serial numbers.

    Yes David, your 336RC is very unusual, as Marlin actually started the two digit prefixes in late 1968 with the 68 prefix you have. I've only seen one other in all the 336's I've observed, and that's been a long time ago!

    The RC on your gun is correct, and not unusual, as most of them had that designation on the barrel. This was just a mistake in Bill's book when he continually lists or refers to the carbine as the 336C, and it should be the 336RC (regular carbine). This was to differentiate it from the 336SC (sporting carbine).-Vall
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    Marlin Date Codes and Production Variations

    Gentlemen

    I own a 1957,336RC, P code serial number, with micro groove and no white line on butt plate or no pistol grip cap at all. Also no “tell-tale” screw hole where one might have been. From what I have read, the 1957 has white line, hooded front sight and grip cap.

    Can y'all clarify for me please? Maybe left-over ’56 stamped for 1957?

    Thanks,

    Roger

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    I'll add to the data here, in case anyone is compiling these things. I have two 1968s. One is an RC with serial # 68952XX. The other is also an RC with serial # AD600XX, but it has a straight buttstock and a straight (but not flat) lever. The lever is rounded at the back, but it is not curved. It also has a saddle ring. I'm guessing it's an RC Texan? Both have 20" barrels.

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    Quote Originally Posted by Snake_99 View Post
    Gentlemen

    I own a 1957,336RC, P code serial number, with micro groove and no white line on butt plate or no pistol grip cap at all. Also no “tell-tale” screw hole where one might have been. From what I have read, the 1957 has white line, hooded front sight and grip cap.

    Can y'all clarify for me please? Maybe left-over ’56 stamped for 1957?

    Thanks,

    Roger
    Marlin didn't like to throw anything away. If it is a low serial number, then that is what happened. I have a 3 digit 1948 model 336, that the only part that is a 48 is the frame. And even that has
    some attribute's of the Model 36. That is from one model to the next. In your case it is just one year to the next.

    Here is the 336RC also known as a 336C from the 1956 and 1957 catalog.336C 1956 catalog.jpg336C 1957 catalog.jpg
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    La'i-be'eeldoh=(many guns)-NRA Life - Marlin league #16, Minnesota MarlinOwners--Team's= Marlin Express, Levermatic, 35 Rem #68, 32 Special #4, 45-70 #28, 1894 #94,30-30 #131, 39 #39, 38-55 #39, X7 #47, 60 #120, Shotgun #3, 366-44 #2, 44-40 #37, 22 Mag #006, 356 #?, MR7 #3 pending-Finally an Updated Marlin Dates and Production sheets.-Marlin Model 32-38 Pump Project-LEVERMATIC Catalog pages 1955-69 -This is how I converted a Marlin pump 22, to new type mag tube.

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    Tenderfoot
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    Very informative, Thanks. However, mine says 336RC on the barrel, no while line,etc, SN P45XX, why don't we show the complete serial number, I do not know if Marlin started at SN 1, each year or started at some arbritary number, like car manufactures do.

    Roger

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    Quote Originally Posted by Snake_99 View Post
    Very informative, Thanks. However, mine says 336RC on the barrel, no while line,etc, SN P45XX, why don't we show the complete serial number, I do not know if Marlin started at SN 1, each year or started at some arbritary number, like car manufactures do.

    Roger
    Lets start with the 336RC. A Marlin carbine at that time had an RC on the barrel, this stood for Regular Carbine. But as in the catalog they put it down as a 336-C, both mean Regular Carbine
    in the Marlin world. I am not sure how Winchester dos theirs and so on. The other carbine was the Sporting carbine. That was marked on the barrels as 336SC.
    I believe newer Marlin carbines, just have 336C or 336-C. I only own one carbine and it is a SC made in 1935, so I am not sure when they stopped stamping RC.

    As to why we don't put the full Serial number. It is possible for someone, that is up to no good, to take that number and file a Stolen guns report. For insurance or what ever.
    So say someday you decide to sell your gun and someone checks the stolen gun database. All of a sudden it looks like you are selling stolen merchandise.
    I don't know of it ever happening, but that is one possibility that has been warned of here.

    In other words better safe than sorry.

    As to the Serial number starting at 1? I would think that they would, but the lowest that I have seen, and have, is a 2 digit number. I am sure most single digit guns are locked away in
    big expensive collections somewhere.
    Snake_99, erimort and dpe.ahoy like this.
    La'i-be'eeldoh=(many guns)-NRA Life - Marlin league #16, Minnesota MarlinOwners--Team's= Marlin Express, Levermatic, 35 Rem #68, 32 Special #4, 45-70 #28, 1894 #94,30-30 #131, 39 #39, 38-55 #39, X7 #47, 60 #120, Shotgun #3, 366-44 #2, 44-40 #37, 22 Mag #006, 356 #?, MR7 #3 pending-Finally an Updated Marlin Dates and Production sheets.-Marlin Model 32-38 Pump Project-LEVERMATIC Catalog pages 1955-69 -This is how I converted a Marlin pump 22, to new type mag tube.

  11. #10
    Tenderfoot
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    You are very, very, informative. This whole exercise is for me to determine if a whiteline is correct for this gun. I know that now, it doesn't make a tinkers Dxxn, but in 100 years, someone my think it is rare. I always keep all orignal parts for everything. I am a Retired Nuclear Engineer and "we" are anal about "traceability".

    Rog


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