Overinking Errors on Bureau of Engraving Notes: How Filled-In Details Affect Grade and Value
Overinking errors occur when excess ink floods the recessed lines of an intaglio printing plate, obscuring fine portrait details, numerals, and lettering on finished notes. Understanding how these manufacturing defects are classified, graded, and valued can help collectors make smarter buying decisions and spot underpriced gems in dealer stocks.
Read More →