The Ronald Reagan Presidential Foundation has announced it will “use every legal means” to stop the sale by a British online auction company of a vial of blood allegedly drawn from the late president, according to The Wall Street Journal.

The Washington Post originally reported that PFC Auctions is selling the blood sample, which it says was taken from President Reagan during his recovery from an assassination attempt in 1981. The auction company says it obtained the item from a man whose late mother worked in a lab where the president’s blood was tested.

Doctors who treated Mr. Reagan after the 1981 shooting recalled that several hospital workers took souvenirs from the experience, including stitches and medical reports, the Post said.

In a statement, the foundation, in Simi Valley, Calif., called the sale a “craven act.” The auction, which ends today, is asking a bid price of almost $15,000.