1950 Tientsin (25 Oct) to Scotland. Airmail cover, f.w. SC7 $20000 on East China Production issue in pair + C4 Inauguration of PRC $3000 in
1950 Tientsin (25 Oct) to Scotland. Airmail cover, f.w. SC7 $20000 on East China Production issue in pair + C4 Inauguration of PRC $3000 in pair on reverse, in tota of $46,000 for 40g airmail cover rate to "Other Countries" rate, tied by Tientsin bilingual cds. Example of airmail to "other countries" during 5th postage tariff period (16 Aug - 31 Oct 1950). Franking of SC7 is also outstanding.1950.10.25 天津寄蘇格蘭。航空封，背貼改7華東區交通圖改值2萬元雙連 + 紀4（4-4）開國3000元橫雙連，合46000元40克寄“其他各國”航空信函郵資，銷天津三格英漢日戳。為第五郵資期（1950年8月16日至10月31日）航空例子。貼用改7票實寄亦相當難得。
