Commemorative plaque to Mr. Gusztáv Zettl (1852-1917) Hungarian industrialist, art collector and patron of the arts. It has been affixed on the occasion of his 150th anniversary to the front of the main building of the Collection Zettl-Langer which was previously his vinegar factory and distillery. The unveiling took place on 8 July 2002. The author of the bronze relief is László Kutas (2002). (Sopron, Balfi Street Nr 11)