Interesting take. Not sure what percentage will have such consumed interest in doubleguns, drillings, etc. along with street rods, bikes, etc., but Dietrich Apel's platform in my opinion is the only avenue / conduit to preserve such info:

http://www.germanhuntingguns.com/

Larry B. Schuknecht makes an unparalleled effort in an attempt to preseve said weapons history / thinktank / database. And all @ 0(ZERO) cost to the reader.

Cheers,

Raimey
rse