One of our interlocutors here sent me some pictures of the various single triggers found on his Marlin Model 90s -- a Pre-War 16-gauge, a Skeetking and 1954 Model 90ST. After receiving the email and photos, I got out Co. Brophy's Marlin book and reread the Model 90 section. Col. Brophy led me down the primrose path! On page 417 he wrote "In 1954, a single-trigger version of the Model 90 was added to the line." and that is what I keyed in on in my recent post. Then on page 419 he does a listing of the Model 90 price lists and it shows a single trigger Model 90 offered in 1940 (Nov), 1941 and 1945?!? He also goes on to say -- "Curtis, Cowe and Lard selective and Romberg and Peterson nonselective single triggers were evaluated. The Romberg non-selective was the one finally adopted by Marlin and the only one produced." Anyone found any Patents or any other information on this Romberg trigger?
Brophy also goes on to say "Elmer E. Miller of Millersburg, PA., modified some Marlin single- and double-trigger Model 90 shotguns by installing his design of single trigger." That would lead me to think that any Model 90s with a Miller would be so marked.
At any rate, here are the pictures of the pre-War 16-gauge --
