Air Post, 1918-23, accumulation of fifteen unused and nine used stamps, also eleven stamps used on ten covers, better items incl. unused nos. C1, C2, C3 two, C5 two and C6 two, used nos. C5 and C6 three, covers incl. both commercially used and event covers, the best is no. C2 on July 15, 1918 first flight cover (catalog value $800.00), extremely mixed condition (most have faults), otherwise very good-fine lot, approximate Scott retail $2,071.00 est.