i have, a 1949 ben franklin half 1837 half penny (hole in it) mercury dime 1936 nickel (has dat on it) sorry about the low quality, i only have a built in cam. but i will buy a new cam soon!
Well, let's give it a shot... it would be easier to give a more educated guess with good pics of both obverse and reverse, so we'll give you current melt value on the dime ($3.12) and half ($15.62); the buffalo is about $0.75 to $1.00 (unless a "D" error); the holed coin is an interesting piece (a token not a coin) but in this condition maybe a few dollars (higher grades go for upwards of $200); a know nothing about Canadian coins, but I usually pick these up for less than a dollar in my dealers junk bucket. Maybe someone else could be more specific.