Last month, Standing Liberty quarter dollar specialist Robert H. Knauss shared his example of the rare 1918/7-S Standing Liberty quarter dollar overdate variety with us. This month, he is back with another nice Standing Liberty quarter dollar doubled die variety — a new listing for my files.

It is a doubled die obverse on a 1927 Standing Liberty quarter dollar that I now have listed as 1927 25¢ WDDO-001. A Class II spread toward the center shows on IN, TRUST, the date, the bottom of the gown, and the bottom left and bottom right stars. In addition, Class VI extra thickness shows on IN GOD WE TRUST, LIBERTY, the stars and the date.

Only seven doubled working dies are known for this series so any new discoveries like this one tend to cause a bit of excitement.

John O. Phillips submitted a 1935 Washington quarter dollar with a doubled die obverse. Doubling spread to the north shows on the letters of IN GOD WE TRUST while a close spread toward the center can be seen on the letters of LIBERTY. This one is in my files as 1935 25¢ WDDO-001. It is also listed by the Combined Organizations of Numismatic Error Collectors of America as 1935 25¢ 3-O-V.

The first known reverse doubled die for the 2012 Lincoln cent was submitted by Jon A. Rice. Doubling shows on the lower letters of ONE CENT, increasing in spread from left to right. It also shows on the lower shield and both sets of designer’s initials, especially the J in JFM.

I have this one listed in my files as 2012 1¢ WDDR-001 while the Coppercoins website lists the variety as 2012P-1DR-001.

No stranger to this column, Joseph Koelling submitted a 2013 Lincoln cent with a doubled die obverse.

Extra thickness shows on the letters of LIBERTY on the coin and also on the 20 in the date. “Notches” show on the bottom left of the ERTY in LIBERTY.

This one is listed in my files as 2013 1¢ WDDO-003 while Coppercoins lists the variety as 2013P-1DO-006.

John Wexler is a renowned numismatic researcher and author on error coins and die varieties.