10 penny \"crown / eagle\" with steep overprint the Mariana Islands on faultless letter piece in of the rare colour red carmine (UV: dark red), cancel \"SAIPAN 25 / 2 / / 01\", rarity, colour-photo attest Steuer BPP, by Michel so far only the unused condition with 1200,- assessed, all the others conditions because the extreme rarity only -, -