I have an O/U coin door which came with a white plastic coin bucket.
The bucket has a 3"x3" flat metal spring attached to the inside.
The spring is located directly underneath the holes where the coins drop into the bucket, so the coins bounce off the spring before dropping into the bucket, kinda like a little 'diving board' for want of a better term.
I have looked at other coin buckets (including the same design as mine) on Google image search, and none of them appear to have this spring.
Does anyone know what it is for?
My two theories so far are:
Make the coins bounce before falling into the bucket, so they are distributed evenly instead of piling up in one spot.
A security device to prevent an employee with a key to the coin door (but without a key to the coin bucket) fishing coins out through the holes in the top of the coin bucket housing.