British West Indies. (St. Vincent). 1910. Folded 'Printed Matter' envelope from 'W.C. Proudfoot, Licensed Vendor of Stamps, Box 42, St. Vincent' addressed to France bearing SG 94, 1/2d green tied by Kingstown/ St. Vincent date stamp 'Ja 24 10', hand-stamped 'BBOK POST' in violet with St. Brieux arrival '9/2' on reverse.
Very rare item of 'Book Post' mail from St. Vincent.