Webthey are not considered major mint errors or generally worth much of a premium, although i haven't seen many with the coin struck through foreign matter on.
Webwe check the colorado state quarter for the 3 o'clock cud error. find more errors with a usb microscope!
Webin 2019 and 2020, the u. s.
Produced w (west point, new york) mint mark quarters.
Less than 5% of quarters produce in 2019 and 2020 have a w mint mark.
Webthe colorado quarter was one of the several busy:
And somewhat problematic designs in the series.
The design placed quite a bit of stress on the dies,.