Help with maker small spoon

[Shinystuff]

This tiny spoon about 5cm long was obtained in London back in the early 1960's. Marks on the back of the handle are HE RA (or HA BA, but I think the former) and "Sterling". Can anyone help with ID on the maker or origin. Also is it a salt or mustard spoon or just a trinket? Thanks.

John

[Shinystuff]

Just as a followup, there is a pin soldered on the back, the spoon is meant to be worn as a broach. Under where the pin was attached I can make out the last few letters "meria". The letter in front of the m may be a u but can't be sure. Maybe this will help? Thanks again.

John