Unidentified Stamp

Unidentified Stamp
Arms:
Quarterly 1 & 4 A lion rampant 2 & 3 Barry of six checky
Dimensions (height x width): 24mm x 16mm
Quarterings: 1 & 4 A lion rampant 2 & 3 Barry of six checky
Heraldic Charges: barry (6)lion rampant
Notes:
Perhaps foreign. If the three bars are vairy, the arms in the second and third quarters could be one of a number of British families including Beaumont and Bruce.

Sources