Proof "Less than ¼d.": 1d. "No. 1. S.F. Black", affixed to large piece printed in black ink "COLOUR SCHEME", "Stamps for Postage purposes are printed in Singly Fugitive Inks. Stamps for Postage and Revenue are printed partly in Doubly Fugitive and partly in Singly Fugitive Inks for all values above 2½d. The colours marked D.F. can be produced in S.F. inks if required and dated "MARCH, 1908"