The Bridge Set, the first set combining stones and metal, is called the Bridge Set of 1895 because in subsequent years the company produced many different bridge sets, in at least seven different series. This special set is the only one produced in the NF era. No complete set is known. What is known are the building plans, the patent, the box top (with the metal parts packing plan and the cover label) and three of the four stone layer packing plans. Metal parts have finally turned up on an Ebay auction, in April, 2003. Metal parts, reproduced from the patent and the packing and building plans, have been available since 1999.
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