Hi Joe, nope, just as shown and the other cheek is blank. There is ‘1’ on the underside, but so many makers numbered hammers before weight became popular I think.
I understand your point, maybe I should expect a knock on the door ;-)
I recall an old boy once telling me that if the broad arrow had another arrow stamped as a mirror image ( <- -> ), this was supposed to denote the item had been officially decommissioned. That being said, I’ve only ever seen such a mark once on a large wrench and I guess in reality it never really happened on small Items.