Worth about £1.13 in BU condition. 51,776 were minted, the 12th lowest of any BU 1p.
12th/ 41
Its BU mintage of 51,776 is the 12th lowest of 41 BU 1p coins in the catalogue.

£0.09
Mintage 536,318,000
2005 1p Elizabeth II (magnetic)

£1.13
Mintage 51,776
2005 1p Elizabeth II BU (magnetic) (this page)

£1.13
Mintage 40,563
2005 1p Elizabeth II Proof (magnetic)
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