Unidentified Stamp

Unidentified Stamp
Crest: Out of a ducal coronet a demi-phoenix [?] or demi-eagle wings displayed
Dimensions (height x width): 15mm x 10mm
Coronet: Baron
Heraldic Charges: coronet, ducal, out of aeagle, demi-phoenix
Of the 39 crests listed by Fairbairn, only one fits the bill: Parkyns. It is either Thomas Boothby Parkyns, 1st Baron Rancliffe (1755–1800); or George Augustus Henry Anne Parkyns, 2nd Baron Rancliffe (1785–1850).