For some reason I was thinking there was dollars mixed with this. Skipped over "pocket change" and most of cavs comment.
penny = 2.5g
nickel = 5g
dime = 2.27g
quarter = 5.67g
80,000 quarters is around 1,000 lbs
Now that starts to climb when the change is a mixture of the above since most of these will be pennies.
Not too mention how many cast iron pigs that is. Most of these pigs look small from what I see and probably only hold around a couple hundred in change.
Seems it also may be a requirement to have your coins in rolls at some places. Not sure of the 80s. I know for sure I would quit a bank teller job if someone came in with $20k in change if it was not in rolls.
Going to show myself out of this.