Watch List notes:

British Coins, Victoria, private pattern shilling, c.1869, by L. C. Wyon, struck in aluminium, head l., wearing coronet, unsigned, rev. JOHNSON MATTHEY & CO. HATTON GARDEN around, REFINERS across centre, 20.22mm. (Bull 3136 [R6]; cf. Attwood 10), minor handling marks, virtually mint state and exceedingly rare
*ex Baldwin's vault
The bust as used on a number of Colonial coins.
Estimate: (400-500 GBP)