Anne - as for the talc suggestion, that might depend on the size of the item - I wouldn't have thought so unless it was at least 6" tall. Wasn't talc generally in tins, or was powder also in glass containers for the trinket trays? Unless an example turns up I doubt that we'll ever know.
I had a Reg. No. some year or two back, that defied all my efforts to trace - I tried the States, Germany and eventually gave up - my reason for trying those countries was because I was aware, or thought I was aware, that like the U.K. they also had their own Reg. numbering system.
It's true that the late C19 was full of stylized animals, but so too was the late 1920s - 30s - think of the Jobling figures.
I could be wrong, but would plump for this dog being intended for an English speaking country, assuming it didn't come to the U.K.