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The Global Insight

How can you tell if a 1981 100 dollar bill is real?

Author

James Olson

Updated on April 07, 2026

Hold the note to light to see an embedded thread running vertically to the left of the portrait. The thread is imprinted with the letters USA and the numeral 100 in an alternating pattern and is visible from both sides of the note. The thread glows pink when illuminated by ultraviolet light.

Do old 100s have watermarks?

A watermark bearing the image of the person whose portrait is on the bill can be found on all $10, $20, $50, and $100 bills series 1996 and later, and on $5 bills series 1999 and later. The watermark is embedded in the paper to the right of the portrait, and it can be seen from both sides of the bill.

Do old $100 bills have strip?

The Security Strip is a thin, faint embedded strip that runs vertically across the note from top to bottom, just to the left of Ben Franklin in the $100 bill. The thread should be visible from both sides of the note. The thread in a $100 bill glows pink when illuminated by ultraviolet light (UV).

Is a 1981 100 dollar bill value?

The 1981 series $100 star notes are worth around $850 in extremely fine condition. In uncirculated condition the value is around $1,500 for notes with an MS 63 grade. The 1981A series $100 star notes are worth around $400 in extremely fine condition.

How much is a 1981 $20 worth?

Most 1981 series $20 bills are worth around $25 in extremely fine condition. Uncirculated bills with a grade of MS 63 can sell for around $65. Bills issued from the Federal Reserve Bank of Minneapolis can sell for more money. The 1981A series $20 bills are worth around $25 in extremely fine condition.

What’s the value of a 1981 100 dollar bill?

In uncirculated condition the value is around $1,500 for notes with an MS 63 grade. The 1981A series $100 star notes are worth around $400 in extremely fine condition. In uncirculated condition the value is around $875 for notes with an MS 63 grade.

Why was the one hundred dollar bill made?

The $100 United States Note was issued due to legislation that specified a certain dollar amount of United States Notes that were to remain in circulation.

Why is the 100 dollar bill called a Watermelon Note?

The note featured a portrait of Admiral David G. Farragut. The note was also nicknamed a “watermelon note” because of the watermelon-shaped 0’s in the large numeral 100 on the reverse; the large numeral 100 was surrounded by an ornate design that occupied almost the entire note.

When did the Federal Reserve change the 100 dollar bill?

1950: Many minor aspects on the obverse of the $100 Federal Reserve Note were changed. Most noticeably, the treasury seal, gray numeral ‘100’, and the Federal Reserve Seal were now smaller with small “spikes” added around the Federal Reserve seal, like the Treasury seal.