I bought this in the UK last month. The back of the postcard says the publisher was Daibutsu, Hongkong.
Any estimates on a date?
The 1889 map shows it as projected, so the photo was taken after that. The statue is in place on a 1911 map, so it could be before or after that.
UPDATE: Moddsey says sometime during the 1910's is most likely, " as the Legco (former supreme court) [visible on the right edge of the postcard] was built in 1912".