Back of postcard | Gwulo: Old Hong Kong

Back of postcard

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Back of postcard

The back of this photo.

Date picture taken (may be approximate): 
Tuesday, January 1, 1924

Comments

This site seems to record the details of Hong Kong stamp costs 

http://www.hongkongstudycircle.com/Papers/005_HK_PS_web_article_Scamp/al...

If I've read the chart correctly, the 4-cent charge for postcards  came in in 1894.