Brand: Grolsch (Lente Bok).
Producer: Grolsche Bierbrouwerij.
Description: Silver crown, green, yellow and white cap. Red oval with green leaf, green circle. Yellow text: Grolsch ®, red text: LENTE BOK, green text: DE VIER JAARGETIJDEN.
Plastic line.
Factory sign: HB (Helmut Bruninghaus Gmbh).