Haha, yes, collectors are usually not willing to part with the items that mean so much to them. In other words, collectors collect, they don't sell. I completely understand. If nothing else, maybe you can share a few photos of any of the examples you own. Always nice to see images of untouched examples. Can I ask you John, are the Austro-Hungarian gummis more difficult to find than the German gummis? More rare to come across? I feel that when they do come up for sale I see German gummi examples more often. All the best!
P.S. Attached are some photos of my modest collection.