April 5-7, 1971.
Invitation created by Fritz Dreisbach and signed "Love & peace, Mark and Fritz".
Invitation combines handwritten and typewritten text along with various illustrations.
Laminated and addressed to "Dad".
Displayed in the exhibition titled "Heart stampin', crucible bustin', & pipebendin': inside studio glass", held at the Rakow Research Library, May-November 2009.