Just been cataloging my coins when it struck me i was defo missing one. My 1905 EF shilling i purchased from coin cooke Spent two hours looking for it, then calmed down and started looking logically, i found it in the little envelope the coin was dispatched in, i usually move them to my plastic wallets but for some reason i hadn't.If it was such a standout coin it could easily have been overlooked So how do you, with large collections avoid the situation