It is generally assumed that all 1955 Doubled Die Lincoln Cents were produced during a single day at the Philadelphia Mint. According to most sources, approximately 20,000 to 24,000 1955 Doubled Die Lincoln Cents were released into circulation within a batch of approximately 10 million newly struck cents. This is just a tiny fraction of the total mintage of Philadelphia cents of this year, which reached 330 million pieces, a relatively high number but only about half of the highest mintage that was achieved during the decade.
From the original mintage of doubled die cents, only a portion survived for later generations of collectors. As basically the whole mintage went into circulation, and given the fact that it took a while for the variety to be noted by the general public, it can be practically assumed that many must have been lost over the months and years after their mintage.
From auction appearances and the general availability of the 1955 Doubled Die Lincoln Cents, modern sources usually quote a number of approximately 12,000 to 15,000 examples that are still believed to exist in all grades. The available supply has been met with constant demand from collectors. Most examples that come on the market are quickly bought and placed into collections where they often remain for many years.