Thanks for all the kind words. @Paddy I've never actually bought a bulk lot of coins, and I'm thinking it's something I need to experience! Doing your hunting at someone's shop you don't risk being saddled with stuff you don't want, but perhaps I'm playing things a bit too safe.
@Peckris 2 I have a comparable tale from much earlier this year. I was at one of my local antiques centres where I'd been rummaging the lower grade pennies for a while, finding very little. I moved on to some of the other offerings and gathered together a nice little group. Before I left I thought I'd dip my hand in the pennies one more time, and out came a 1951. You can't beat that moment of disbelief!