OK very nice both seem to be in very good condition.Of-course one is better than the other.I take it it has been restored at some point.What you have there is two Model 5 Specials.The only different's is the restored one is the 2nd version and the other is the 3rd version.The 3rd version doe have the correct air cleaner however it should be on a shorter hose that keeps it down next to the engine.The other should or should I say could have one of two different ones.One is black and the other has a black shaft then a creamy coloured twist top.I'll get some photos for you and stick them up tomorrow some time.