Hallmarked 'WAV SS' Sterling silver retail 7.5g engraved floral etched brooch with scalloped edges excellent condition vintage

A really gorgeous piece from the condition to the quality of engraving and the bright finish

It is very clearly stamped on the back with 'WAV' and 'SS' - the latter of which stands for Sterling Silver

I am unable to determine who the maker is.

Measures 4.5cm x 3.6cm

Weight is 7.5g

NB: I am away till retail the 16th of Sept