I posted a link back to here, on the Graybeard forum, with my skeptical comments about the Hermann H. wooden canister shot. One of the members there posted links to info and a photo of a similar-looking wooden canister projectile, and another that wasn't so similar. The one at this link is the similar one. I am more ready to accept the Hermann item as genuine now that I've seen this one.
http://www.digitaltmuseum.se/things/...count=16&pos=9