Thanks for the replies. After studying the photos of the various grades, Terry, it appears the one I'm working on is a DS grade. Except that on the sideplates it only says "Lefever Arms Co." in small block letters. That is the only writing on the entire shotgun other than the serial no. 388xx and there is no engraving anywhere. The barrels are fluid steel.

TwiceBarrel- Before I retired I ran cattle in the Flint Hills for years, good country.

Phil