Air Mail 1921-48 mint and used range with 1921 and 1929 sets mint and used, 1940 Hong Kong Print (watermarked and unwatermarked) set in blocks of four and duplicated singles, 1946 C.N.C. Hong Kong unwatermarked $23 on 30c. with surcharge inverted, misplaced horizontally and imperforate at top, $53 on 15c. surcharge misplaced vertically, $100 on $2 misplaced vertically and horizontally, $200 on $5 surcharge inverted. Mainly fine. Cat. approx. $1150. (several hundred).