Spinks are always way over on coins in this era. CCGB excepted, all the price guides are a bit sniffy about eBay, I suspect, and don't see it as "real" auctions, so don't see the prices achieved as "real" prices. It would be interesting, but a lot of work, to compile a price guide just from eBay, and see how it compares with the big four. I suspect it would look something like this: CCGB - about right Coin Yearbook - too low British Coins Market Values - a lot too low Spink - way too high.