Coin 2 sounds like a 1/24th shilling from Jersey. It should look something like this
, though different dates have different-shaped shields. I'm afraid we'd need pics or further description to ID the rest.
During the Victorian period would 18th century silver coins still be legal tender even though they are 100 years out of date?
They would have been legal tender, but would not have been commonly encountered. Britain had a Great Recoinage in 1816
; pre-1816 shillings were slightly heavier and would have been removed from circulation.
Don't say "infinitely" when you mean "very"; otherwise, you'll have no word left when you want to talk about something really infinite. - C. S. Lewis