I'm sure Shamokin had more then 1 Playground Unfortunately.
and Paper Bags ? Unless the Girls put them in the Bags,
in order to Carry them Comfortably.
It makes No sense the Coin were Tarnished, From expected Burial.
Yet the paper Bags Still Existed
Each girl may have used a bag. Vs coins having been found in bags.
The count (6 bags /six girls) hints of bags acquired from , lunch ,or another source of convenience unrelated to the cache's context..