thats right, and the boxes are exactly the same ( basically only two sizes made back then) but the end label will tell it all, as well as the outer shipping sleeve,the red/white boxes ,had the guns serial numbered white marked on the front ( long side)
the two rd/white boxes that were available were PRINTED in white on the end label either RST04 or New Model Blackhawk 6 1/2 in,,,,,the gun that was then put in the box that "fit" the closet, then had the paper sticker place over the 'pre printed' end,,,thus , like this one......
so again, is it a fixed sight gun or the actual adjustable model of the Mark I..............
I have the boxes ,but maybe NOT the proper sticker ( label)