Hiya Weeb,
just posted on your other thread on this subject as you initially thought this was a 36?

Anyhow, the 38 from what I recall was the replacement in the late 80s-but probably more likely very early 90s of the Diana/Original 45. It wasnt as popular as the 45 and I am proud to say that I had the very last '38 out of Ruag stores, via BAR. The '38 was also produced in the "Firebird" brand/line of Dianas signified by a gold medal inlaid in the base of the pistol grip. There was also a 34 and 52 in the same line.

It very likely you have a 38- but it shouldnt be that hard to make out the numbering to the top of the cylinder? Also on the cheekpiece side of the rifle, on the tail end of the action near the safety catch you should find some very small numbers indicating the month and year of manufacture, This may help with ID as well.

Dave