Description

2017 $1 FRN Green Square Mismatch Serial 66EPQ

About This 2017 $1 FRN Green Square Mismatch Serial Number

This 2017 $1 FRN green square mismatch serial number is one of the most desirable modern BEP anomalies. It features a true mismatch serial number paired with the rare green placeholder square, a digital marker produced only when the BEP numbering system experiences a sheet crash or misfeed. Very few examples of a 2017 $1 FRN green square mismatch serial number have ever surfaced, making this note an elite discovery in the small‑size error community.

How the 2017 $1 FRN Green Square Mismatch Serial Number Occurred

Beginning in 2009, the BEP transitioned to 50‑subject sheets. During high‑speed production, humidity shifts and sheet crashes can cause the numbering software to insert a green rectangular placeholder instead of a digit. This digital artifact is responsible for the green square seen on this 2017 $1 FRN green square mismatch serial number. Unlike typical mechanical errors, this anomaly reveals the inner workings of modern BEP serialing technology.

Why Collectors Value the 2017 $1 FRN Green Square Mismatch Serial Number

Collectors prize this error because it combines a true mismatch serial with a missing digit and a digital placeholder square. The 2017 $1 FRN green square mismatch serial number category is far rarer than standard mismatches or obstructed serials. Only a handful of confirmed examples exist across the 2017 and 2017A series.

Market Demand for the 2017 $1 FRN Green Square Mismatch Serial Number

This exact error had sold strongly at auction as it realized $7700 in 2022. Another example with a six-digit mismatch, with a green rectangle sold for $14,400. These results highlight the strong demand for the 2017 $1 FRN green square mismatch serial number among advanced collectors.

Summary of This 2017 $1 FRN Green Square Mismatch Serial Number

With its rarity, visual impact, and documented auction history, this 2017 $1 FRN green square mismatch serial number stands as one of the most important modern small‑size error notes available.

*These green rectangle LEPE press mismatch serial number errors are “exclusive to the plate they were printed on”, with no others from that print run. Pretty interesting…. Most mismatches that have been discovered tend to appear in large quantities.  LEPE PRESS (Large Examining Printing Equipment).

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