Quarter struck on DIME STOCK?

I think this is the only time I have ever seen this 'error'.

http://page.auctions.shopping.yahoo....ction/90257135

It is perfectly legitimate. Several times in the late 1960s, early
1970s Mint workers fed coils of planchet strip intended for one
denomination into a blanking press set up for another denomination.
Thus, you got thick dimes or thin quarters, the most common one being
the 1970-D thin quarter. A 1969 thin quarter is much scarcer. They made
the papers when a batch of thick dimes got released into circulation
in, IIRC, Kansas City, and they jammed all of the pay telephones in
town.
Remember pay telephones?
LOL
Tom DeLorey

wrote in message
oups.com...
It is perfectly legitimate. Several times in the late 1960s, early
1970s Mint workers fed coils of planchet strip intended for one
denomination into a blanking press set up for another denomination.
Thus, you got thick dimes or thin quarters, the most common one being
the 1970-D thin quarter. A 1969 thin quarter is much scarcer. They made
the papers when a batch of thick dimes got released into circulation
in, IIRC, Kansas City, and they jammed all of the pay telephones in
town.
Remember pay telephones?
LOL
Tom DeLorey

Have two, working, stand alones, in my garage.

TerryS