Image Colnect-140-687-Othmar-H-Ammann-1879-1965-building-engineer---bridge.jpg

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Type: stamp Issuer: Switzerland Date: 1979 Denom: ? Visibility: public Image owner: none postage 2/21/1979 20(c) multi issue=Othmar Ammann 100th d=bridge & Othmar Ammann unwmk perf=11.5 Crops No visible images cropped from this one. Measurements Resolution is unknown. Source Source name: Colnect File URL: http://i.colnect.net/b/140/687/Othmar-H-Ammann-1879-1965-building-engineer---bridge.jpg Uploaded August 16, 2014, 2:53 pm by Stan Shebs