Double side, three color letterpress printed postcard with instructions; "On the darkest day wake at dawn & open 4 doors at the appointed times."; signed by Felder and Faust; 56 of 300; PC6 No.12. "Dikko: lnocut & letterpress. Paper: Rives de Lin. Type: Bernhard Modern". CBA copy is accompanied by an orange, Purgatory Pie Press mailing envelope that is postmarked 7 Jan. 1988.