Silver Coaster? Saucer? Something? Appreciate help

[JoyousParkin]

Believe its French, has a coin in it and I'd like to know if its a coaster or what even. Knowing all the good stuff would be nice, year, maker, country, and so on. You guys are the best!

http://i874.photobucket.com/albums/ab30 ... C_1195.jpg
http://i874.photobucket.com/albums/ab30 ... C_1188.jpg

[spobby]

Depenedent on size I guess it's a pin dish with an English hallmark for London 1901, & although the maker's mark is rubbed, & having a similar dish pass through my hands recently, I would say this is Sampson & Morden & Co.
The coin I will leave for others.
Best regards
John