Can you ID this button please?
 

I've got a dozen gilded buttons in my collection, some large and some small. They resemble the RAF type except that the crown is more elaborate and is also topped by a cross.

Here are two pictures I took:
http://img76.imageshack.us/img76/854...bg4.th.jpg</a>
http://img517.imageshack.us/img517/1...ton2iz4.th.jpg
Some are marked "ET.s V.ve Martin - BRUXELLES", others "J. Fonson - BRUXELLES" on the rear side. To see larger pics try and save them on your desktop.

Any clues?
Franz