Between 1899 and 1908 ~700,000 were sold. But I'd attribute it more to a more successful campaign they ran called "Hammer the Hammer"
Link for info on that:
https://lemmy.world/post/10228746
Between 1899 and 1908 ~700,000 were sold. But I'd attribute it more to a more successful campaign they ran called "Hammer the Hammer"
Link for info on that:
https://lemmy.world/post/10228746