Posted 10/07/2018 11:21 pm
Two possibilities come to mind.
The first is that the mint was making coins for another country and a planchent got mixed in with the US coins. That has happened often enough.
The second involves heavy maintenance, or a tear down of an existing machine or structure wherein an old planchet was lost. The workmen then throwing the planchent in the hopper. As an aside I worked in the Post Office in College. We tore down an old conveyer that had not been in use since the late 70s,( this was in the mid 90s). We found a pocket with various letters from many different years The oldest being from the 50s. We just hit each one with the "Found in empty container" stamp, and sent the on to be delivered.
I guess there is a thrid possibility. The mint does occasionally use a contractor to make their planchets. A long time contractor could have some "old planchets" in storage and put that in with the order.
The first is that the mint was making coins for another country and a planchent got mixed in with the US coins. That has happened often enough.
The second involves heavy maintenance, or a tear down of an existing machine or structure wherein an old planchet was lost. The workmen then throwing the planchent in the hopper. As an aside I worked in the Post Office in College. We tore down an old conveyer that had not been in use since the late 70s,( this was in the mid 90s). We found a pocket with various letters from many different years The oldest being from the 50s. We just hit each one with the "Found in empty container" stamp, and sent the on to be delivered.
I guess there is a thrid possibility. The mint does occasionally use a contractor to make their planchets. A long time contractor could have some "old planchets" in storage and put that in with the order.
