The value base on which Dr. William H. Sheldon's 70-point grade/price system started. The lowest-grade price was one dollar ($1) for the 1794 large cent - upon which he based his system.
The value base on which Dr. William H. Sheldon's 70-point grade/price system started. The lowest-grade price was one dollar ($1) for the 1794 large cent - upon which he based his system.