373rd Heinrich Köhler auction - Day 1

Steamer 20 centimes blue, fresh colour, with small marginal imperfections, tied by lozenge of dots "5129" of Port Said to folded letter dated July 22, from Port Said to Kantara, minor soiling, an attractive and rare cover, being one of the 8 covers cancelled by the "5129", signed N. Gennaropoulo on reverse in red ink and certificate BPA (1976)
Provenance: Stanley Gibbons Auction 1977
                      described and depicted in S. Ringstrom and H.E. Tester "The Private Ship Letter Stamps of the World - Part " page 88