Thanks Tom - I really appreciate your assistance with this project thus far. Our original objective with the exhibit was/is to exhibit LC Smith firearms that were most likely/certainly engraved by Kraus (because like everyone else, we interpreted the LC Smith literature to conclude that Kraus didn't sign his work)... however, discussions with you presented a potential new twist in this story, so a signed gun may be possible (which would be a bonus).
The Pratt museum and Les Weldin have been helpful in acquiring loans for other LC Smith guns. Here is a link for the upcoming exhibit -
https://www.gcv.org/explore/gallery/current-exhibits/