Nice Terrier. The "-1" change (J frame) was released in 1961 and the flat latch generally disappeared in 1966, so yours should fall somewhere in between.

It wasn't a terribly popular gun compared to the Chiefs Special, so they don't show up as often. It is a .38 S&W, NOT a .38 S&W Special. If you look at the serial numbers on pg. 397 (SCSW #3), you'll see that your gun falls into the 1949-1969 block for the ".38 Regulation Police and Models 32, 33". Production was less than 70,000 guns over 30 years, or about 1/10th their small frame production in .38 Special. Look for old ammo at gun shows.

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