I am not aware any 90% Ikes were ever struck by the San Fran mint --> 40% definitely
See
here and
here.
Nonetheless, you might need a bit of help tidying up all those loose large coins, so here's
a link to the proper sized wrappers.
Happy silver hunting & lets us know how it goes spending them back into circulation.
As an aside, when receiving change, ask for it in nickels....there's usually plenty in the merchants cash drawers. The
metal composition value recently dipped below face value of the nickel, but was as high as 9.5 cents a few years ago.