I've posted this here because I know I've found an old bit of darkroom equipment, but that's all I know. Anyone ever come across a 'jumbo 6x4 postcard enlarger' before? It's got me puzzled because although I can guess where the 35mm neg goes, and where the paper goes, there is no light source. Is there somehting missing or do you switch the room lights on, (surely not!) or what? If I can work out what to do with the thing I might give it a go, but at the moment I'm baffelled.