Thanks for the links Jimbo,
I have seen Patricks Whitefriars mice . My initial thoughts about this blue one was that it might be a simplified design for MDG a bit like the the MDG swan I found.
But I have to conclude that it must be a FM Konstglas version of a mouse !
The colour match with the whale is spot-on though , which is what got me thinking down the MDG line !
ta, Mike.