Project 2013B achieves a significant expansion of its permanent historical record, surpassing a critical new benchmark in the documentation of Series 2013B duplication errors.
Historical database growth for Series 2013B duplicate serial number star notes.
Project 2013B – Matched Pairs: Registry Surpasses 85,000 Cataloged Serial Numbers
Milestone: 85,000 Unique Entries
Total Confirmed Matches: 241
Series: 2013B $1 Star Notes
The Project 2013B database has officially surpassed 85,000 unique serial number entries, further solidifying its role as the primary research continuation archive for the Series 2013 $1 (B) star note duplication event. This growth provides essential valuation context for collectors assessing banknote value or seeking a professional currency appraisal.
By cataloging these serial number errors and misprinted banknotes, the project continues to provide the conclusive proof required to verify Bureau of Engraving and Printing (BEP) duplication events.
Submissions remain open for notes within the valid duplication ranges:
B00000001* to B00250000* and B03200001* to B09600000*.
Every submission adds a vital data point to the most comprehensive historical price dataset for this error. Refer to the Duplicate Serial Number Guide
Project Resources
- 👉 Add Your Serial Numbers – Help reach the 100,000 entry goal.
- 👉 Confirmed Matched Pairs – View the full registry of authenticated duplicates.
- 👉 Auction History Archive – Historical results and market trends.
- 👉 Hobby Supplies
Project 2013B – Matched Pairs continues the research of the original Winograd–Zegers project as a permanent historical market record.
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