First map of U.S. Mason-Dixon Line going up for auction

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Cite

First map of U.S. Mason-Dixon Line going up for auction. (2026, October 29). CBS News. https://www.cbsnews.com/news/first-mason-dixon-line-map-auction-civil-war/

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CBS News · collected 2026-10-29

Quick Summary

The original hand-drawn map of the Mason-Dixon Line, which marks the border between Maryland and Pennsylvania but later became symbolic of the division between free and slave states in America, is set for auction. Vice President Lauren Brunk from Brunk Auctions estimates the historical document could sell for between $800,000 to $1.2 million during a livestreamed event on Thursday. Drawn by Charles Mason and Jeremiah Dixon between 1767 and 1768, it was initially meant to resolve a territorial dispute but later became pivotal in the Civil War era.
Written by AI on 2026-10-29, from this article's own text only (the story summary below draws on all the coverage).

AI analysis

Story summary

The hand-drawn map of the Mason-Dixon Line, created between 1767 and 1768 by Charles Mason and Jeremiah Dixon to settle a border dispute between Maryland and Pennsylvania, is going up for auction. The map, remounted on Japanese rice paper, will be sold in a livestreamed event on Thursday. Lauren Brunk, vice president of Brunk Auctions in Asheville, North Carolina, estimates the document could fetch anywhere from $800,000 to $1.2 million for an anonymous seller. Originally intended as a boundary between two colonies, the line later became symbolic of the division between free and slave states during the 1820 Missouri Compromise, representing the fundamental divisions that led to the Civil War four decades later.

Written for “Mason-Dixon Line Map Auction” on 2026-10-29, grounded in this article and the 0 other(s) covering the same event.
Why this leaning score
This article does not take a side on a contested political question, so it has no leaning score. That is an answer rather than a gap: a match report or a rescue can be warmly or critically written without being left or right, and scoring it anyway is how approval of a subject gets recorded as a political position.
No political leaning scored for article 114476 · logged 2026-10-29

Story

📰 Mason-Dixon Line Map Auction
Other · 1 article(s) covering the same event.

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How this article was measured signals, leaning charts, publisher record, byline, topics and claims

Signals How these are calculated →

Claims extracted
20
sentences that state something as happening or true
Uncertain
5%
1 of 20 hedged ("reportedly", "may", "according to")
Leaning
not political
takes no side on a contested political question
Publisher signals
66/100
CBS News's corrections and hedging, across everything collected from it. Not a measure of accuracy.
Outlets on this story
1
Other
Same framing elsewhere
1
articles that frame the event the way this one does
Analyzed 2026-10-29 · how these are computed

How this is being covered How these are calculated →

Article leaning vs. publisher reliability
Source leaning vs. consistency

Publisher

CBS News · 4083 article(s) · 6 correction(s) detected
Running correction rate · 6 correction(s)

Who wrote this

No reporter is named on this article.

Topics

American Brunk Northern Pennsylvania Southern

Subjects

Brunk ORG · 6× American NORP · 2× Charles Mason PERSON · 2× Jeremiah Dixon PERSON · 2× Northern NORP · 2× Pennsylvania GPE · 2× Southern NORP · 2× the Library of Congress ORG · 2× Japanese NORP · 1× Lauren Brunk PERSON · 1×

Narrative

But when it was used in the 1820 Missouri Compromise to establish the limits of human bondage in the still adolescent United States, it became synonymous with the fundamental divisions that exploded into Civil War four decades later.
framing: assertive · carried by 1 article(s) · first seen 2026-10-29
🔮 Remounted on backing made of Japanese rice paper, the document will go on sale Thursday in a livestreamed event.
2026-10-29 · CBS News
First map of U.S. Mason-Dixon Line going up for auction · assertive framing

Claims (20 extracted, 1 hedged)

The hand-drawn chart of the Mason-Dixon Line that eventually divided the free from the slave states is going up for auction. asserted
that → draw → auction
Remounted on backing made of Japanese rice paper, the document will go on sale Thursday in a livestreamed event. asserted
document → remount → event
"It's not that often that you can really get this close to something that is so historically important," said Lauren Brunk, vice president of Brunk Auctions in Asheville, North Carolina. asserted
Brunk → get → Asheville
"And it was awe-inspiring, really." asserted
it → inspire → ?
Brunk estimates it could fetch anywhere from $800,000 to $1.2 million for the anonymous seller. uncertain
it → estimate → seller
"Drawn between 1767 and 1768 by Charles Mason ... and Jeremiah Dixon ... the Mason-Dixon Line is the symbolic boundary between Northern and Southern states," Brunk says on its website. asserted
Brunk → draw → website
The survey by Charles Mason and Jeremiah Dixon was originally meant to settle a border dispute between the then-colonies of Maryland and Pennsylvania. asserted
survey → mean → Maryland
But when it was used in the 1820 Missouri Compromise to establish the limits of human bondage in the still adolescent United States, it became synonymous with the fundamental divisions that exploded into Civil War four decades later. asserted
that → use → War
"The Mason-Dixon Line that most Americans know is this dividing line between the Northern free states and the Southern slaveholding states," Brunk said. asserted
Brunk → know → states
"But the line was not drawn for that reason." asserted
line → draw → reason
A popular theory is that the term "Dixie" comes from Dixon, though the true origin is disputed. asserted
origin → come → Dixon
Soon after it was drawn, the linen-backed strip of paper -- 76 inches long and 6.5 inches tall -- was given to the family of attorney Benjamin Chew, who represented the descendants of Pennsylvania founder William Penn. asserted
who → draw → Penn
The map remained in the family's hands until 1982, when late publisher Malcolm S. Forbes outbid the Library of Congress and bought it for $360,000, Brunk said. asserted
Brunk → remain → 360,000
At the time, it was said to have been the highest price ever paid at auction for an American map. asserted
it → say → map
The map changed hands again in 2002. asserted
map → change → 2002
A vertical section showing the Delaware-Maryland border is housed at Princeton University. asserted
section → show → University
Brunk reached out to officials at the Library of Congress to see if they wanted to bid on it again. asserted
they → reach → it
"I wanted them to be aware that this was coming back to the market," she said. asserted
she → want → market
"And they said, at this point, budgets being what they are, they were just not in a position to buy it. asserted
they → say → it
" But if some patriot out there wants to purchase it on the library's behalf, Brunk said, "they'd be happy to have it." asserted
they → want → it
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