While grubbing around digging out my stash of left-over US dollars, it occurs to me that I've accumulated quite a bit of old currency from visits to counties that I've not been back to, or have changed currency, such as (notes and/or coins), including French Francs, German Deutchmarks, Kenyan Shillings, Czech Koruna, various others.
I've also got, it seems, quite a collection of the limited edition 50p, £1 and £2 coins.
Where's the best place to look at selling rare notes/coins?