What kind of optics were available in this country prior to World War 2? I know the external adjustment target scopes were available. I know that some small fixed power scopes like the Lyman Alaskan were available. What else was there? At what point did American scopes take the form that is familiar to us today? When did scopes like the Redfields and the Weaver K-series show up? Did we have any thing like the scopes that Germany apparently had? Some of the scopes that Germany had are recognizable to anyone that has seen a hunting rifle. I'm asking out of academic curiosity. Partly because I would like to know what could have ended up on the 1903A4. Mostly I'm just curious.