Later in 1953, Mint authorities decided to correct the defects in the obverse design. Thomas Shingles, the Chief Engraver of the RCM, was summoned to lower the relief of the model. The result was that he had strengthened the shoulder and hair detail. This revised obverse (often called "The Shoulder Strap" variety due to the resemblance of the lines to a strap) was introduced before the end of the year. This was accepted as the standard obverse. Unfortunately, the No Shoulder Fold obverse saw new life as it was used to produce some of the 1954 cents for the proof-like sets and a small quantity of 1955 cents for circulation. The 1955 No Shoulder Fold Variety is the most desired with collectors.