Stamps

Swiss inventions – Toilet Duck

What started out derided as an odd product name is now known worldwide: the toilet duck. It’s a Swiss invention that has its origins in a family business in Dällikon.

Rich Content Section

Miniature sheet Toilet Duck

When Walter Düring-Orlob wanted to name his new product “Toilet Duck”, he was advised against it. But he stuck by his idea, applied for a patent and even made a TV commercial. It has achieved huge success! Since its market launch in 1980, Toilet Duck has become indispensable in Swiss bathrooms – and a long-standing export hit. The spirit of innovation ran in the family: Walter’s mother Maria Düring-Keller developed the famous “durgol” descaler, laying the foundation for the family business. When Walter joined, he was working on the practical plastic bottles. He kept wondering how a cleaning product could be squirted effortlessly under the toilet rim. The answer was a curved bottleneck reminiscent of a duck. Incidentally, the first recipe for the cleaning product came from his wife Vera Düring.

Miniature sheet on first-day cover E6
Miniature sheet on first-day cover E6
Maximum card A6
Maximum card A6
Special folder with miniature sheets of Swiss inventions 2021–2025
Special folder with miniature sheets of Swiss inventions 2021–2025

Technical information

Sales

Philately: from 28.8.2025 to 30.9.2026 or while stocks last

Branches: from 4.9.2025 to 30.9.2026 or while stocks last

Validity

Unlimited from 4.9.2025

Printing

Offset, 4-colour + rub-off aroma coating; Gutenberg AG, Schaan, Principality of Liechtenstein

Formats

Stamp: 73 × 56 mm

Sheet: 105 × 70 mm

Miniature sheet with a stamp

Paper

White stamp paper, with optical brightener, matt gummed, 110 gm 2

Perforation

11 ¾ : 11 ¾

Design

Jürg Glauser, Ittigen

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