1927 Harbin (21 Jun) to Jardine Engineering Corporation, Shanghai. Registered cover, f.w. unovpt. Junk 1c + ovpt. "Limited For Use in
1927 Harbin (21 Jun) to Jardine Engineering Corporation, Shanghai. Registered cover, f.w. unovpt. Junk 1c + ovpt. "Limited For Use in Ki-Hei" 4c + 4c in block of 4, in total of 21c (4x weight + registration fee), tied by Harbin bilingual cds, along with registered mark. Arrived Shanghai (4 Jul). Interesting example of combination franking.1927.6.21 哈爾濱寄上海怡和機器公司,貼未加蓋帆船1分 + 加蓋“限吉黑貼用”4分 + 4分四方連,合2角1分(四倍重量掛號郵資),銷哈爾濱三格英漢日戳,另見掛號章。7.4抵上海。混貼未加蓋及加蓋限吉黑票有趣。