GREAT BRITAIN Wellington 36mm copper medal 32.4 grams Eimer AP-1, BHM 898
In Christopher Eimer's, Medallic Portraits of the Duke of Wellington, this medal is referenced in the Appendix Section aka "Portraits mistakenly identified as being of Wellington or otherwise doubtful"
Obverse: laureate bust facing right within wreath
Reverse: two olive branches upon a pyramid
Edge: FIELD MARSHALL THE DUKE OF WELLINGTON K.G.&. *
Eimer states, "the portraits appear to have been struck from faulty or unfinished dies and bears little resemblance to the Duke, despite incuse lettering around some of the examples reading "DUKE OF WELLINGTON. The portrait is not unlike that of George III found on the one penny token coinage c1815-1820" BHM lists it as being Very Rare
Besides this example, I have only seen two others, and they both had different edges. One was offered by Baldwins in their sale 81 (2013) and the edge read "F:M: HIS GRACE THE DUKE OF WELLINGTON", the other example was offered by Dix Noonan Webb in a January 2019 auction and the edge bizarrely read, "wfodapovyfcobhhttmrb nicipyrdwdrubnqpmsvzo"