The Salvation Army Antigua & Barbuda stamps 1988 were issued two weeks later with the Barbuda mail overprint. The FDC with all stamps on it has been know for a long time (SA 27.1a). The minisheet of General Eva Burrows overprinted Barbuda mail has not been seen before, but turned up recently on Ebay. The suggested number in the SA catalogue is SA 27.1b. Certainly a rare cachet!!
The official posthorn FDC issued by the Post Office has a variant with a large posthorn. This cachet is a standard PO cachet used on local Post Offices and has been seen on several FD issues. This variant was observed also with the Salvation Army stamp from 1995 issued with a local PM (Saudarkrokur). It even contained a 4 block of the SA stamp!! It is very rare to see 4-blocks on the Icelandic SA FDCs!
Another unlisted FDC on a puffin cachet has also been found with a local PM from Vigur.