7'th classicphil Auction - Day 2

1899, 1 s, blue, PIGEON POST 7th issue on complete flimsy, violete box cancellation G.B.P.A./MAR 27 05, agency form type 7, few messages were sent after 1904 when the Barriers population declined as mines were closed down, some toning, still attractive and desirable, F-VF! Estimate 3.500€.