"This Gavel was prepared for Bro. George Washington for the purpose of laying the Corner Stone of the U.S. Capitol and was so used by him September 18, 1793. He then presented it to Potomac Lodge No. 9 of Maryland, afterward Potomac Lodge No. 43 and now Potomac Lodge No. 5 of the Grand Lodge of the D.C., by whose Order of 1840 this Inscription is place upon it. 1856"
... in 1922, due to the long and friendly association between the Lodge and the Farmers and Mechanics National Bank, now a branch of the Riggs National Bank, the Bank officials suggested that it be placed in a specially constructed box of their deposit vault for safe keeping. This arrangement was most fortunate as the Lodge building at 1210 Wisconsin Avenue, N.W., burned to the ground on July 7, 1963 and everything therein was totally destroyed.
The close association between this bank and Potomac Lodge dates back to July 26, 1827 when William Wilson Corcoran, then a prosperous Georgetown merchant and later a co-founder of Riggs and Company, now Riggs National Bank, was raised a Master Mason in Potomac Lodge. He endowed the Art Gallery which bears his name at 17th and New York Avenue, N.W., Washington, D. C.
The following Presidents of the United States, all Master Masons but two, have either used or been present at the using of the Gavel on the occasions cited below:
James K. Polk in the laying of the cornerstone of the Smithsonian Building,
May 1, 1847.
Millard Fillmore in the laying of the cornerstone of the extension of the U. S. Capitol, July 4, 1851.
James Buchanan at the dedication of the Equestrian Statue of George Washington, February 22, 1860.
William McKinley at the George Washington Centennial Observance at
Mt. Vernon, December 14, 1899.
Theodore Roosevelt at the celebration of the sesquicentennial date on which General Washington received the Master Mason's degree, November 2, 1902; in laying the cornerstone of the House Office Building, April 14, 1906; and again, in laying the cornerstone of the Masonic Temple, 801 13th Street, N.W., June 8, 1907.
William H. Taft in laying the cornerstone of the All Souls Unitarian Church, February 13, 1913.
Warren G. Harding in laying the cornerstone of the Washington Victory Memorial, November 14, 1921.
Herbert Hoover in laying the cornerstone of the Department of Commerce, June 10, 1929 and the Department of Labor, December 15, 1932.
Harry S. Truman in the Centennial Observance of the cornerstone laying of the Washington Monument, July 1, 1948, this being a repeat engagement for the Gavel as it was used to lay the original cornerstone of the Monument, Jul 1, 1848.
Dwight D. Eisenhower when it was used to lay the cornerstone of the new extension of the U. S. Capitol building, July 4, 1959.
http://www.potomac5.org/gavel.htm----
Shouldn't surprise me that I can get into (weird) mason stuff from Riggs so easily, considering its former home on the back of the 10 spot:
(behind the Treasury, wink wink)