The pictures are gone from here http://www.925-1000.com/forum/viewtopic.php?f=7&t=19261&p=44001&hilit=Debain#p44001 but I assume this refers to that mark "It’s actually an earlier mark, that of Debain’s grandfather, Francsois-Alphonse Debain. It was registered on 15 Jan 1847, renewe...