An extremely rare US FDC turned just up on Ebay. It was a girl scout cover where the Girl Scouts congratulate the Girl Guards & Sunbems on the 100th Anniversary of the Salvation Army. The Girl Guards emblem is pictured. I have not seen this around before, but it is pictured in the SA FDC catalogue as no SA 4.41.
A very unusual cachet of the SA 5 was obtained: a prestamped letter card (QE 4d) with Express tag . With set of the UK centenary stamps (and the international centenary of the Salvation Army) The PM was from a little village in Northern Ireland – Antrim.