Watch List notes:

MS62+ | Elizabeth I (1558-1603), First 'Tentative' Coinage, Third and Fourth Issue [Crown Gold], Crown [of 5 Shillings], (Pyx Period: 1 July 1567 - 28 February 1570), Tower, ELIZABETH : D .['] G •['] AN .' FR '• ET : HI .' REGINA, crowned bust 4C left, rev. (m.m.) SCVTVM : FIDEI : PROTEGET : EAM crowned square-topped shield dividing E-R, 2.82g [43.6grns], 5h, m.m. coronet (HCN 167; Montagu III, 53; Murdoch -; Ryan 338 this coin; cf. Lockett 1993; Comber I, 13; Schneider I, 751 same dies; Brown & Comber H11; North 1995; Spink 2522A), some partial striking softness with an irregular edge between 3 and 5 o'clock and superficial mark behind bust, otherwise a pleasingly bold very fine, very rare, a more wholesome example than the recently offered Comber coin, in NGC 'Horace Hird' holder, graded MS62+ (Cert. #6135299-016).
Provenance
A Lost Parcel from the Celebrated Horace Hird Collection
V J E Ryan, Part I, Glendining, 28-30 June 1950, lot 338 - nearly extremely fine - £15.0.0 [Hird]
, ,
Brown and Comber record ten instances of this privy mark for denomination [not accounting for duplication] as listed in the Spink Numismatic Circular and Seaby Bulletin between 1937 and 1983. Challis records the mint output for this Pyx Period at £42,671 for Crown Gold.

Estimate: £3000 - £4000