I know that the coin exists, but it is unsual and not a common coin, it's not listed in Krause that I can find. Don't confuse that to mean it's rare. Anyway, I can't offer an estimate for value - but I know somebody who can I'll send him a PM.
Do you have a picture of the coin? as there are a number of versions of it LOL Oh and it is classed as a Crown The basic one is cupro nickle Then you have one with a edge inscription that reads"And trust unto yo (no U)" Frosted detail KB issue (for VIP's) Pattern all over frosting Large date with large emblem on the cross The value will be determined by condition I hope that this helps Ps I should have asked is it the coin with the Queen on horseback and a Crown in the center of a cross made up of coats of arms?
As was explained, the value depends on the condition of the coin. Without a picture we cannot estimate what that value is.