crown

[thistle (emblem for Scotland)   rose (emblem for England)]

 
portrait of Queen Elizabeth
and King George VI

 
[shamrock (emblem for Northern Ireland)   leek (emblem for Wales)]  
 
Crowned
MAY 12TH
1937

cm long by cm wide

 

Credit woven on reverse, top turnover:-

WOVEN IN SILK BY
B.N.H. LEEK, ENGLAND.

The image above is of the silk before the top was turned over, and the bottom turned over to form the point. The creases where this would occur can be clearly seen.
This is a short bookmark, and would more probably have been worn on the coat as a favour, with a pin fastened to the back of the bookmark.