C271 is a curious case as Bauert used a different pair of top rosettes than for other contemporary coins. While we suspect this was a mistake that went unnoticed, Bauert actually made another mistake while making this die: We can clearly see traces of "1771" between "K" and "M", a mistake he made on several reverses over the years.
There are four known C271/CO271 coins, and we list them below. On all four reverses, we can see a die crack through the top right rosette. In addition, the coins look more worn on the right side and towards the bottom, and we suspect the die had started to subside in this area. The obverse die also appears damaged with a worn spot at the top right of the crown, visible on all four coins. It's therefore possible to speculate that the dies deteriorated quickly after entering production. None of the dies combine with other dies.
Coin #1
(Private Collection, Last observation: BR Auction 871, 9th May 2017, lot 219, realized price of DKK 31,200)
C271 - Coin #1
CO271 - Coin #1
Coin #2
(Private Collection)
C271 - Coin #2
CO271 - Coin #2
Coin #3
(Private Collection, Last observation: BR Auction 852, 4th November 2014, lot 5174, realized price of DKK 15,000)
Featured in "Christian den VII's Mønter 1766 - 1808/1812" (Frank Pedersen, 2017)
C271 - Coin #3
CO271 - Coin #3
Coin #4
(Private Collection, Last observation: eBay auction, 2008)