Commemorative cover with an 'American War Leaders' cachet featuring an artistic drawing of General Douglas MacArthur, cleverly postmarked in cities bearing his first and last names in March and April 1948, signed below his likeness in fountain pen. In fine condition. Encapsulated in a PSA/DNA authentication holder. In 1948, General MacArthur was one of several candidates vying for the Republican Party presidential nomination. On June 25th, New York Governor Thomas E. Dewey was nominated at the Republican National Convention in Philadelphia, Pennsylvania.