Uppercase Royal Crest font, letters only and includes a flourish, 1/4" (6mm).
Manufacturer = Impress Art
As with any new stamp set or design stamp, please practice with these stamps first on some copper sheet before stamping on sterling silver.
These stamps come packed with a light coat of oil to prevent rusting. When you first open them, have a few paper towels handy and just wipe them all clean (do not use any water).
The stamps are not marked to help with orientation. The first time I
used them, I used a black permanent pen (or a white paint pen if the stamp is black) and put a dot on the side of
the stamp where I should hold my thumb to ensure the letter would be
facing the correct way.