Watch List notes:

(x) NGC MS66 | Elizabeth II (1952-) 'Silver Jubilee' Crown [Twenty-Five Pence], 1977, Queen on horseback, rev. Ampulla and Anointing Spoon within wreath, milled edge, 12h, a couple of light surface marks, otherwise as struck uncirculated, in NGC holder, graded MS66 (Cert. #2811619-005).
https://www.ngccoin.com/certlookup/2811619-005/66/
Estimate: £40 - £60