Illinois Congressmen 1960's

This vintage 'Abraham Lincoln' first day cover, canceled on May 28, 1966 is hand signed by the following 18 Congressmen from Illinois from the 1960's: Donald Rumsfeld, Schisler, Springer, Shipley, Yates, Ronan, Michel, O'Hara, Kluczynski, McClory, Rostenbowski, Price, Dawson, Derwinski, Erlenborn, Findley, Gray, Pucinski.