Hors d'oeuvre set, wooden tray with seven 6-sided bowls in frosted clear glass, design A.D.Copier 1934, executed by Glasfabriek Leerdam / the Netherlands
Shown in: Leerdam Glas 1878-2003, A.v.d.Kley-Blekxtoon, 4th print: page 102, pic.121