M. Sternberg was a postcard publisher in early 20th-Century Hong Kong. Here's their view of Queen's Road Central:
Who: I guess that the man behind the company was Moritz Sternberg . Apart from the similarity of the names, the mentions I've found of him show he was the proprietor of The Colonial Hotel and later the International Hotel. I can imagine that work put him in touch with visitors to Hong Kong, and the opportunity to sell postcards. eg, several of Sternberg's postcards show locations that visiting sailors would have been familiar with:
What: From the Sternberg postcards I've seen, he only sold postcards printed on a printing press, not the "real photo" postcards that were printed using a photographic process.
I prefer the real photo postcards, as they are usually much sharper and so there is a lot more detail to see in the picture. Still, the printed postcards have the advantage that they could be printed in colour, like the examples shown above. Don't rely on the colours being historically accurate though. These prints are all based on black & white photographs that have had the colour added later. In some case we've seen the same view used for several different postcards, each with a different choice of colours!
Where: The back of that Queen's Road postcard has the text:
Published by M. Sternberg, Wholesale and Retail Postcard Dealer at No. 51 Queen's Road Central and at No. 34 Queen's Road Central, Hongkong.
Let's take a look at the 1911 Juror's List  to see if it mentions those addresses...
Just one match, showing "Arndt & Co." were also at 34, Queen's Road Central. They were "Importers, Exporters, Merchants, Government Contractors and Engineers", so no obvious business connection with Sternberg.
Next year's 1912 Directory & Chronicle  shows that Sternberg had moved:
STERNBERG, M., Tobacconist, Smokers' Requisites, Post Card Dealer - Old Post Office Building
They hadn't moved far though. The Old Post Office Building was on the corner of Queen's Road Central and Pedder Street.
When: The MetroPostcard website lists the publisher M. Sternberg as active between the years 1905-25 .
So far the mentions of Moritz I've found in Hong Kong records cover the years 1894 to 1909. And though I found the company, M. Sternberg, listed in the 1912 Directory & Chronicle , there's no sign of them in the later editions for 1917, 1920, or 1922. So maybe they weren't in business til as late as 1925?
As support for that idea, the Sternberg postcards I've seen have been dated to the 1900s and 1910s, eg these postcards related to the Peak:
If you have any used Sternberg postcards, please could you let us know which year they were used? It might be hand-written like the 1911 example shown above, or shown as part of the postmark if the card was mailed. If you have any Sternberg postcards that show views which were definitely later than 1912, their date will be good to know too. That will help us get a more accurate range of years that the company was in business.
And if you have any Sternberg postcards you can show us, I'd love to see them. Please go ahead and upload them to Gwulo .
Also on Gwulo.com this week: