Uncommon Sats are the first satoshis of each block. Sometimes, these first satoshis are also the first satoshi of a new bitcoin. These are then called alpha uncommon sats.  

This satoshi was mined in the first days of bitcoin’s existence, on January 21, 2009. It corresponds to the first satoshi of the 1270th and 63500th bitcoin mined. It is one of the 100 oldest alpha-uncommon coins in circulation.  

This satoshi was sold at Sotheby’s.