10.08.2003, 20:57 
		
	
	
		 BTW: does anybody know the origin of these common, but somehow 'strange' scales ? 
Scales like 1:10, 1:20, 1:50, 1:100 would be kind of easy to explain (easy conversion etc.), but why are there scales like 1:12, 1:18, 1:43, 1:87 ???
	
	
	
	
	
Scales like 1:10, 1:20, 1:50, 1:100 would be kind of easy to explain (easy conversion etc.), but why are there scales like 1:12, 1:18, 1:43, 1:87 ???

-Team
      
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