Watch List notes:

Victoria (1837-1901), Penny, 1860, dies Dd, 'bunhead' left, rev. n in one over sideways n, 9.81g, 11h (F – [cf. 10, dies 2+D]; Gouby K; BMC [Peck] –; Satin 11; Bamford 17 this coin; Adams 204; Gregory 428; S.3954), a small die flaw and toning spot by date, otherwise virtually as struck with full original colour, the obverse reminiscently prooflike, the error clear and very rare thus.
provenance
Laurie Bamford, DNW 70, 20 June 2006, lot 17

For further observations on this reverse die, see Paul Holland, 'An unusual pair of obverse die-linked bronze pennies dated 1860 and 1861', BNJ 2001, pp.175-6
Estimate: £800 - £1,000