Gwadur
cover 1901 envelope to U.K. with ½a. (7) and 1904 envelope to Muscat with ½a., both cancelled by "GUADUR" squared-circle d.s., 1928 envelope to Muscat with 1a. cancelled by "GWADUR/unused " double-ring d.s. and 1935-37 flown envelopes (4) with various frankings cancelled by "GUADUR" double ring d.s. with "killer" arc, good to fine strikes, a few cover faults.

細節
cover 1901 envelope to U.K. with ½a. (7) and 1904 envelope to Muscat with ½a., both cancelled by "GUADUR" squared-circle d.s., 1928 envelope to Muscat with 1a. cancelled by "GWADUR/unused " double-ring d.s. and 1935-37 flown envelopes (4) with various frankings cancelled by "GUADUR" double ring d.s. with "killer" arc, good to fine strikes, a few cover faults.