We had copper alloy issues in the Northumbrian kingdom (not the most beautiful of coinages...), but otherwise Colin is right in that we don't see any real copper until James I.
Nice coins, Richard.
Here's the link for all those interested: http://www.ebay.co.uk/sch/metal555head/m.html?item=151475029300&rt=nc&_trksid=p2047675.l2562
I really love these milled issues. They look so good in hand that they almost look fake...
http://www.ebay.co.uk/itm/Extremely-fine-1st-milled-issue-1562-sixpence-Elizabeth-1st-coin-/141890217073?hash=item210950e471:g:4NYAAOSwvUlWq1cp
Elizabeth I Shilling, looks to be initial mark Escallop making this the Sixth Issue coinage and minted 1584-1586.
Nice find, and not often pierced for secondary use in this period.
I have a Victorian cabinet that I bought from Malcolm Ellis years ago and a Nichols 'Crozier' I got at an auction. They're both fantastic and I combine them with capsules - great way to store them if you've got a large space in a bank vault.
The Agnus Dei penny is exceptionally rare but the imagery itself isn't all too scarce for this period. Here's an image I took, the motif is all the more enchanting in-hand. One example I've drawn comparisons with is the early 11th century Brussels Cross.