George III, King of Great Britain and Ireland (until 1801) then the United Kingdom and Ireland (1738 - 1820) (Stamp 23)

Owner:
Arms:
Quarterly 1 & 4. England; 2. Scotland; 3. Ireland; On an escutcheon of pretence Tierced in pairle reversed: Two lions passant gardant (Brunswick); Semy of hearts a lion rampant (Lunenberg); A horse courant (Saxony); on an inescutcheon gules the crown of Charlemagne (High Treasurer of the Empire) surmounted of an electoral bonnet turned up ermine
Crown: sovereign
Order: Garter
Dimensions (height x width): 72mm x 37mm
Usage: as King of Great Britain (1801-1816)
Escutcheon of Pretence: On an ineschutcheon gules the crown of Charlemagne (High Treasurer of the Empire) surmounted of an electoral bonnet gules turned up ermine
Quarterings: 1 & 4. England; 2. Scotland; 3. Ireland
Notes:
<p>Same as George IV stamp 10</p>

Sources