GSS Copy Party was held by German Spreading Service.

Announced in Illegal #18 (june 1987), "G.S.S. Fete! Trotz extremer Schwierigkeiten bei der Raum- und Unterkunftbesorgung wird die G.S.S.-Fete doch noch mit sehr grosser Wahrscheinlichkeit am 22. August 1987 in der Nähe von Heilbronn stattfinden ( Hey Mann , da Ereignis !!!)." which Google Translate says means; "G.S.S. Fete! Despite extreme difficulties with the provision of rooms and accommodation, the G.S.S.-party is very likely to take place on August 22, 1987 near Heilbronn (Hey man, because event !!!)"

Report in Illegal #21, according to which the party had 260 visitors.