A letter written by founding father Alexander Hamilton during the Revolutionary War and believed stolen decades ago from the Massachusetts state archives has been returned following a federal appeals court decision, top state officials said today.

Secretary of the Commonwealth William Galvin hailed the homecoming, after last week’s decision by the Boston-based 1st U.S. Circuit Court of Appeals upheld a previous ruling by a district court judge.

The letter was reputedly stolen between 1938 and 1945 by a “kleptomaniacal cataloguer” who worked at the archives, according to the court decision.

Hamilton wrote the letter to the Marquis de Lafayette, a French aristocrat who served as a general in the Continental Army. Dated July 21, 1780, the letter resulted in Massachusetts sending troops to Rhode Island “to bolster the embattled French forces,” the appeals court wrote.

Galvin, whose office oversees the archives and the Commonwealth Museum, said he was pleased the court ruled “that this historical treasure belongs to the people.” The letter is expected to be put on display at the museum for special events, including the annual Independence Day celebration, Galvin said.

The letter from Hamilton, the first Secretary of the Treasury whose profile has soared because of the hit Broadway musical, appears to detail the movements of British forces.

“We have just received advice from New York through different channels that the enemy are making an embarkation with which they menace the French fleet and army,” Hamilton wrote to de Lafayette. “Fifty transports are said to have gone up the Sound to take in troops and proceed directly to Rhode Island.”

It’s signed “Yr. Most Obedt, A. Hamilton, Aide de Camp.”

That cataloguer who likely stole the letter was eventually arrested, but was thought to have pilfered multiple rare documents, some of which were sold to dealers throughout the U.S.

The letter resurfaced several years ago when an auction house in Virginia received it from a family that wanted to sell it. The letter had been in the possession of a relative who died.

The auction house, which estimated the letter could sell for as much as $35,000, determined it had been stolen and contacted the FBI.

The estate of the person who possessed the letter claimed it had been purchased legally, but the appeals court disagreed.

“As an original paper belonging to the Commonwealth and dated in 1780, the letter is owned by the Commonwealth,” the decision said. “It could not lawfully have been alienated to a third party … either before or after the letter left the custody of the Commonwealth.”

Despite the appeals court’s decision, the legal saga may not be over, according to an attorney for the party that had tried to sell letter.

“We are disappointed with the 1st Circuit’s decision, especially its creation of a seemingly new category of public record, a ‘historic public record,’” and the fact it ignored that the letter was not one of the documents the state claimed was stolen, Ernest Badway said in an email.

They may either file a motion for a rehearing with the appeals court, or appeal directly to the U.S. Supreme Court, he said.