Currently on sale at eBay but listed as unknown (ends 23rd May – vendor brownlow3997);
Buchanan of Dunburgh
Arms—Or a lion rampant Sable between two otters’ heads erased in chief proper and a cinquefoil in base of the second all within the Royal tressure of the last.
Crest–An armed dexter hand holding a cap of dignity purpure facing ermine.
Supporters-Dexter, a falcon wings elevated and addorsed proper belled beaked and charged on the breast with two branches of laurel conjoined Or; Sinister a gryphon Sable charged in like manner with two branches of laurel.
Motto-Nunguam victus (‘Never conquered’).
Impaling (my thanks to Arthur Radburn)
Sable two bars ermine in chief three crosses patty (Bathurst)
The sinister Arms do not seem to match any that I could find associated with the maiden names of baronets’ wives. However, with the Bathurst connection it seems to be the son of:
1st Baronet: The Rt Hon Sir Andrew Buchanan GCB (1807-1882). Created Baronet in 1878. He married firstly 4 April 1839, Frances Katharine Mellish (she died in 1857). He married secondly 27 May 1857, Hon. Georgina Elizabeth Stuart (d. 21 March 1904), daughter of 11th Lord Blantyre.
4th son: Rt Hon Sir George William (Rt Hon Sir), P.C. (1910), G.C.B. (1915), G.C.M.G. (1913), G.C.V.O. (1909), (b.1854 d.1924) Maried Lady Georgina Meriel Bathurst, daughter of the 6th Earl Bathurst .
Sir George, as a Grand Cross, would have been entitled to suppporters. However, I am puzzled by the small escutcheon in the dexter chief. I took that to be the insignia of a baronet. An error by the button maker perhaps?