after reading through some threads i started to worry about some coins i came across yesterday in my granny's, i was looking around under a sofa that opened up(bear with me) when i came across an old worn out biscuit tin, i came across alot of old coins and different coins from around the world, a sterling silver medal and negative glass photo thing's. I found out my Dad found this in the attic of a house he lived in England. Then as i was going through it my Grandad brought me up another large biscuit tin, Which had old Half Crowns,Florins,Shillings,Sixpence,Pennies etc in old money bags and he had also recorded the mint years for each type of coin. so to get back to my question.... Im storing most of the coins in plastic money bags, and the original paper money bags some of them were already in. Will these coins get PVC? some of them do(the ones in the first tin that were exposed to air because it had no lid already have traces of PVC) and finally what should i keep these coins in? im thinking of collecting all the years for each of them and stick them in a nice folder but im not sure of what types of plastic casing and what not... thanks in advance for reading this
