unused 1962 (Dec.) Scientists 8f. Tsai Lun, variety with erroneous vertical inscription with extra character, fine unmounted mint. Yang C297a, US Photo$600 | Christie's

拍品 2326

2326

unused 1962 (Dec.) Scientists 8f. Tsai Lun, variety with erroneous vertical inscription with extra character, fine unmounted mint. Yang C297a, US Photo$600

细节

unused 1962 (Dec.) Scientists 8f. Tsai Lun, variety with erroneous vertical inscription with extra character, fine unmounted mint. Yang C297a, US Photo$600