Before you clean the 1922 thrippy just make sure it aint a 21/22 overdate,... they are worth a lot more and thereby deserve the appropriate non action.
very nice finds mate.
Must get out and detect more shady spots with finds like that, I guess they would have been doing the same in the past, hence the lost coinage. A good selection of early silver/coppers and buttons in that lot, certainly well worth the heat.