Just won, on G-broker another Security Industries 2" .38 with box and papers, my other Security Industries is a ..357. For the younger members it was made 3-4 years in the early 1970's. It is actually a improved S&W 60. It comes stock with a crown barrel, recessed cylinder, some with finger grove grips, and spur hammer. It is so close many of the S&W parts swap out, including the grips.
IF you can find one, they were made in 2', 2 1/2", and MAYBE 3", you can get it, because of it's obscurity for a very low price. I paid $255 for the new .38 and only $325 for my .357. Both with matching boxes.
They are few and far between but if you find one jump on that like a hobo on a ham sandwich.
