Hard to date, but c1930’s / 1940’s. They were used by travelling watch salesmen on letter heads, calling cards, promotional cards etc. Looking at the block from left to right in the 1st picture they are OMEGA MENS OMEGA LADIES TISSOT MENS LAVINA LADIES I applied the stamps to an ink pad to see what it looks like when stamped, but due to the age and wear to the surface of the rubber, it didn’t come out too good, but you will get the general idea. Overall the pad measures 10.2cms wide x 4.8cms high. The wood is starting to buckle to the top with the end of the nails protruding through the wood. A great collectable !!!