Watch List notes:

Elizabeth II, 1964, William Shakespeare, 400th Anniversary of Birth, medal pair in 9ct gold and silver. By P.Vincze. 32mm, gold; 14.3g, silver; 16.1g. (Eimer 2103). Both about as struck and in original presentation cases.
Interestingly the only gold issue mentioned by Eimer is that measuring 57mm, whereas this examples measures 32mm.

Estimate: 300 GBP