So Dan's hypothetical about a Rev war button exchange turns out to be very possible.
I couldn't find any deployment info on this 95th button so I joined a French button forum lol Really....I did. I google translated everything as my French is très mal.
I posted the button and waited. In the meantime I saw all these posts about Waterbury buttons and things we dig everyday. So it was easy to help them date some buttons. Finally, they helped me with my button....turns out that the 95th was a Irish unit named &quotshocked04:rrington that came into service in 1698. Changed its name to Walsh in 1776. They fought in Grenada with D'Estaing, then were summoned to Georga to assist Rochembeau at Savannah. They went on to Yorktown where they are mentioned on the bronze commemorative battlefield memorial.
I can imagine happy allied troops exchanging momentos saying, till we meet again in WW1. lol