This item is a quality military style metal, silver/nickel finish button that has a loop shank back with a royal crest on its surface.  The royal crest is clear in the center of the button with a pattern surrounding the crest.  The actual crest has a knight helmet above a shield with a Latin phase at the bottom.

They come in lots of 3, 5, and 8. 

Sizes are 11/16" =17mm, 13/16" 20mm, 7/8" 22 mm.

Made in Italy.

Great for blazers, jackets, blouses, suits.

Check out other buttons listed.