Don Hall sent in a 1959-D/D Lincoln cent that shows a very nice repunched Mint mark.

Reader Marvin L. Young starts us off with a Proof 1956 Lincoln cent that has a very nice obverse doubled die.

Twelve-year-old Riley Turnbull and 9-year-old Kaden Turnbull both made nice finds while searching 2015-P Bombay Hook National Wildlife Refuge quarter dollars.

Lincoln cents with the Union Shield reverse are definitely pop­ular with our readers, who shared their most recent finds in our Varieties Notebook column.

Reader Sheila Ruley submitted a 1971 Lincoln cent with an obverse doubled die that is near and dear to my heart.

Coin World readers have wasted no time in reporting die variety finds.

Four different readers submitted die varieties on four different denominations of U.S. coins.

The Homestead Monument of American quarter dollar has yielded a number of die varieties whose diagnostics are tied to the window panes in the design.

Two different dated silver Roosevelt dimes with very similar doubled die obverses were submitted by Calvin Goddard.

Prior to 1990, Mint marks were hand punched into working dies, sometimes more than once, using a hand-held punch and a mallet.