I have estimated the date base on-line research.  Please consult your expert.  This vessel is in exceptional condition.  It was made by Royal Worcester and has the mark and #1048, an "x" and Rn 21627.   I believe these are museum quality pieces.
The size is 3.8" x 3.7".

See my other listing for another Royal Worcester piece which is a double spouted pitcher which is a match of one in the Metropolitan Museum of Art.