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The International Gauge 0+1 Days in Giessen are characterized by excellent dioramas and layouts in both scales. The Duinger Sandbahn from Stadtoldendorf is one of the best layouts in gauge 0, as a light railway with a transhipment function.

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I received photos of the 01Treff from Maarn, Netherlands.

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Steiner Modellwerke abandon O gauge. However, the gauge 1 models remain in the program.