Watch List notes:

Victoria, pattern crown, 1837, by or for Joseph Bonomi (an Egyptologist), incuse Egyptian-style design showing queen's head l. with tight bun hairstyle, rev. Britannia walking r., with trident and shield, holding Victory, incuse inscription to l. and r., border of stars each side, numbered 1 on edge (ESC.320; L&S.1), in plastic holder, graded by NGC as Proof 62, about as struck
£6000-7000
This is a highly important piece as it was the first example struck, denoted by the number on the edge.