Carse Antiques has dated this piece to the 1900s.
This particular pair are very well travelled as they were bought from the daughter of a deceased estate in New Zealand having been taken out there in the 1930's when the ladies mother emigrated from Scotland. They are beautifully modelled as usual and have the early impressed mark to the base on both of them. They are both in very good condition with no damage and no repairs except for one of the ears has been off on one of them.

The only other Black example I have had I sold some years ago for £1650 and can still be found on goole if you do a search. It wasn't marked.
One of the slightly unusual features of this pair is that there is some gold highlighting to the ears, feet and tail. I thought at first this had been added later but it doesn't appear so as it is under the glaze.
SIZE; Just over 6" long by 2 3/4" deep by 4 1/4" high
CIRCA; 1900
Carse Antiques has dated this piece to the 1900s.
You can view the stock and full dealer information on the Carse Antiques Profile Page
Carse Antiques is a registered member of LAPADA