Those early (1973) New Model boxes were made in two sizes, the small one like this was pre-printed for the standard auto and the large one was pre-printed for a 6.5" .357 NM Blackhawk. All other guns shipped in them had a sticker over the end with the content gun's model info. The 9.5" Single Sixes of the era required a bigger box which was plain white with a sticker. Then the heavier yellow and black hinged boxes came out, sometime in the late 1970s, but not the longest one, so the very earliest 10.5" Super Blackhawks had a brown box. When the longer yellow/black came out, it could accommodate the long barrels of the 10.5" Super and Maximum. The -Six DA revolvers used a red and black heavy cardboard box that came along in about 1975 replacing these flimsy boxes, and the yellow and black ones that followed were about the same design as the red and black. So these flimsy ones were also used for the highback -Six DAs over a very short period of time around 1974 since the highback profile did not fit in the die cut interior of the original white DA boxes (and some late production lowbacks were also shipped in these after the white box supply was exhausted).