while you're waiting for the model No., just to say that as you possibly know, this is the famous hobnail pattern from Davidson - Registered with the Board of Trade in the U.K. as Rd. No. 153858 on 2nd August 1890, and doubtless produced for some time after - apparently, this design was also produced for several years prior to Registration - why it wasn't Registered earlier I've no idea.
As for the demi-lion trade mark, the books say this was used from c. 1880 and disappears about 1890 .......... the suggestion for this situation is possibly that it was discontinued by his son Thomas due to his father's death - it recurs around the 1920, or so. Very nice looking creamer - good find.

Assume you do mean the factory pattern No.?