Not strictly a DEATH stamp, the Dead Letter Office emberalla perhaps sits comfortably here. Appearing generally singly only in LBEs from the Year of the Sneezing Pands, examples of pairs or blocks of 4 could have been found, but to my knowledge there are no full sheets in collector’s hands. But if I had one I might well be quiet about it. Whatever, the blocks of 4 do show how the stamps would be arranged on the stamps, with each one rotated ninety degrees to its neighbours

Covers bearing this stamp were only available via a prize ticket in the May Day! May Day! LBE. Despite a total of 50 being available these are sought after! You can see why this one ended up in the Dead Letter Office