WILLIAM IV, 1831 SILVER MAUNDY SET, PCGS PROOF-LIKE

William IV Silver Maundy Set, 1831
Four, Three, Two and One Pence (4) 
Obverse: All with the bare-headed bust of the king facing right, with Latin legend and toothed border surrounding: GULIELMUS III D: G: BRITANNIAR: REX F: D: 
Reverse: Crowned mark of value with date either side all within oak wreath 
S.3840.
A superb proof-like matching set, scarce as such.
All coins have been slabbed and graded by PCGS as follows:
1831 Maundy Four pence, PL62, Certification number: 204220.62/35606005.
1831 Maundy Three pence, PL63+, Certification number: 203951.63+/35606006.
1831 Maundy Two pence, PL64, Certification number: 203685.64/35606007.
1831 Maundy One pence, PL62, Certification number: 203413.62/35606008.