Below is a photo of the printing block used for the first ad shown in this thread that appeared in the December 1956 issue of American Rifleman. The block is stamped DEC 1956 on the back. It was purchased from a factory employee many years ago.
Purchased a .44 Target in '56 for full retail of $85. It was a dream to shoot but too bulky for carry. When the Model 39 was announced I placed an order and was told delivery would take a year so I ordered a .44 military ($75) for carry and still have it. A couple of years later I purchased a 1917 for $25 via mail order. Guess those were the good old days.