Can’t read it, but looking here might help. The logo and rubber handle make it newer, so you can skip the 1930 etc.
archive.org
Just looking in 1960, there are no hammers with wooden handles and the rubber grip. And none going back to 1940, skipping around. Also didn’t see any in 1969, so maybe just look newer first?
68 p., illus., 26.7 cm, trade catalog
archive.org
mm, maybe this one from 1971. RG 1 1/2, putting an age to Mintgrun’s answer
148 p., illus., 28.5 cm, trade catalog
archive.org