M. Sternberg, No 51, Queen's Road Central, Hongkong,
Dealer in pictorial cards, and all kinds of fancy cards,
also Christmas, New Year, and birthday cards, post card albums, by retail and wholesale,
The largest assortment of Cards in the Colony.
The site Gwulo.com (<a href="https://gwulo.com/%3Ca%20href%3D"https://gwulo.com/node/32930">https://gwulo.com/node/32930" rel="noreferrer nofollow">gwulo.com/node/32930</a>) shows an item with the description: M Sternberg, Wholesale and Retail Postcard Dealer [c.1906-c.1914]
Within the wrapper, almost a hundred ca. 1910 postcards were found.
Courtesy Kien family archives.