Watch List notes:

AU58 | Elizabeth I (1558-1603), Third 'Restoration' Coinage, Sixth Issue [Fine Gold], Angel [of 10 Shillings], (Pyx Period: 1 June 1587 - 31 January 1590), Tower, (m.m.) ELIZABETH : D .' G ' ANG .' FR ' ET • HI ' REGINA •, St. Michael vanquishing Dragon, rev. (m.m.) A • DNO : FACTVM : EST : ISTVD ET : EST : MIRABI .' Ship surmounted by square-topped shield and crucifix mast dividing E and Rose, twisted rigging 3/2, with bowsprit, waves lapping below, 5.06g [77.9grns], 9h, m.m. crescent (HCN 108; Montagu -; Murdoch -; O'Hagan 114[a]; Carlyon-Britton 608; Lockett 4092; Comber I, 26; Schneider I, 789; Brown & Comber C35; North 2005; Spink 2531), traces of creasing resulting in a minor crack below trailing leg of Dragon, otherwise hints of reddish tone, a bolder fine, and an historic rarity struck at the time of the Spanish Armada, in NGC 'Horace Hird' holder, graded AU58 (Cert. #6135299-007).
Provenance
A Lost Parcel from the Celebrated Horace Hird Collection
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Brown and Comber record thirty-four 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 £46,973.
Estimate: £800 - £1200