That's a 336, introduced in 1948 with serial prefix E, so yours is of 1950 mfg. The carbines in 30-30 are the most common variation. Is the top of the receiver still untouched (i.e. not drilled for a scope mount)? Finish seems to be showing wear and going plum. The sling swivels were added to the gun. Condition of the barrel is important too. (Pix shown don't tell us much...) At the outside, I'd say $300 - maybe.