The US Mint has put the Two Roll Set for the second redesigned 2009 Lincoln Cent back on sale. The set had been taken off sale on August 12, 2009 after selling 300,000 units.
This is one of several times this year when the US Mint has taken a product off sale, marked the product page as “Sold Out”, moved it to the “No Longer Available” section of their website, and then quietly put the product back on sale. This had occurred with sales of the William Henry Harrison Dollar Rolls and John Tyler Dollar Rolls.
In past similar situations, the re-offering period has only lasted a few days to a week before the products were once again “sold out.”
Presumably this situation occurs when the US Mint sells their predetermined inventory of a product, but then order cancellations or invalid credit card information reduces the actual number of sales. The product is then put back on sale until the remaining final inventory is sold.
You can find the 2009 Lincoln Cent Formative Years Two Roll Sets for sale on the US Mint’s website here.