Oh Trev, you are indeed Father Christmas...! I had just given myself a stern talking to, about taking a deep breathe and giving it another attempt and Voila! Thank you SO much..! Hope you have a good Christmas too..! It's a warm sunny day here... ;-)
I have trawled all the internet sites that I have been able to find, but not spotted this silver maker's mark at all...
Someone (here in Oz) suggested Eva Hidstrom...?? But I can't find any other pieces similar by her (just in silver, mostly enamel..).