This one is 1 3/4 inches.Erik in NJ said:Hi G! Looks like a bridle rosette ..... take a look at a few of mine on this forum. They nominally measure 2" x 2"...... what size is the item you found?? Sweet find!

Erik in NJ said:Hi G! Looks like a bridle rosette ..... take a look at a few of mine on this forum. They nominally measure 2" x 2"...... what size is the item you found?? Sweet find!
Nice ID gents.Timekiller said:Harness mount (Copper alloy 52mm x 38mm Circa 17th century )
Your two tabs are broke.(mounts)