....similar to Perry's comments. I recently (within the last couple of years) sold a Model #1 sheath to Tunefink with the Johnson horizontal sheath stamp. No...I do not have the exact dates or numbers made..."BUT"...(There's that word again)...There were quite few and for several years...and for several models.
Best, Capt. Chris
PS: I concur with other statements made by Perry and Crutch. Gaddis' read is penned from years of Randall shop visits and digging through the old filesas well as first-hand accounts and interviews with Gary and Bo himself. I would put 100% more creedence behind those facts, as opposed to any other print on the subject...CCS