Blimey, there are some beautiful coins there Dave, the medieval hammered coins will need I’Ding as in ruler, mint, but it looks like there is a few Groats and maybe half Groats of one of the Edwards, the Roman is absolutely stunning, might be a Byzantine Honorius Solidus coin, also looks like you have some nice milled silver coins too especially what looks like a Charles II shilling.
You could look in books or search the internet but a good coin dealer is your best bet for value purposes, the Roman could well be worth quite a lot of money.
I hope non of them are fake but even so the early faked coins can still be worth something.
I have a Spink book if you want to borrow it as I know your in Bristol.