Grammoplast

Swedish pressing plant, in operation ca 1970-1992.
Records pressed here can commonly be identified by ‘GP’ or ‘Grammoplast’ in the runouts, often found alongside a date (yymmdd or dd/mm-yy). The test pressings of the company can be identified by ‘Provskiva’ printed on the labels, meaning ‘test pressing’ in English.

When 'GP' also mentioned together with lacquer engineer initials, like "BA-GP", then add 'Lacquer Cut At' in company
Mastering engineers known been working at Grammoplast: Björn Almstedt