Unidentified Stamp

Unidentified Stamp
Dimensions (height x width): 44mm x 40mm
Monogram: J M C or M
Coronet: Earl
If the monogram in the stamp is “M”, then seventeenth-century and eighteenth-century Scottish Earls were: Morton (1458); Mar (1565); Moray (1562); March (1697). In the peerage of Great Britain they were: Macclesfield (1721); Mansfield (1776). And in Ireland: Meath (1627); and Mexborough (1766).