Vintage Solid Silver Bangle Mid Century Engraved Leaf Design

This is a beautiful solid silver bangle fully hallmarked for Birmingham 1966 with the maker’s mark HS & Co (most probably H Samuel) - it is engraved with an inscription to “HRC on your 21st December 3rd” which gives it a sense of history. It is beautifully engraved with a leaf design and a lovely opening and closing click mechanism. 
The condition is very good with just some age commensurate signs of wear.