You're in luck Mick. I have a copy of "Reloading Simplified" by Cyril Waterworth, published 1973. It has loads for both .38spec. and .357mag using Nobel's pistol No.2.
The book gives "Max loads" and "suggested Loads".
.38 Special: Nobel's Pistol No. 2.
148gn Wadcutter or R.N. Cast Lead: Max, 4.4gn, 860fps. Suggested, 4gns, 760fps.
158gn Cast lead gas check or Jacketed: Max, 4.3gn, 870fps. Suggested, 4.1gn, 745fps.
165gn Cast lead: Max, 4.5gn, 915fps. Suggested, 4.3gn, 665fps.
The book gives "Max loads" and "suggested Loads".
.38 Special: Nobel's Pistol No. 2.
148gn Wadcutter or R.N. Cast Lead: Max, 4.4gn, 860fps. Suggested, 4gns, 760fps.
158gn Cast lead gas check or Jacketed: Max, 4.3gn, 870fps. Suggested, 4.1gn, 745fps.
165gn Cast lead: Max, 4.5gn, 915fps. Suggested, 4.3gn, 665fps.