Here are 2 pics that the seller sent me. Doesn't look old enough to be a 1913 but then again I have not seen one before. Apparently Wold has all the parts needed to make it usable.
i was going to say go to there home page precision german airbrush but there in fklorida and your half way round the world as for the world air brush i was liking there side feed looks like a micron cmsb or side feed bad ger 100 just what we need around here another air brush to ponder this could have gone in my any rare or un heard of air brushes i looked at there web site i liked the simple chrome handl on the side feed 350 new zealand dollars ???