I have a couple of these cameras. Very able performers, but the lens is not coated and can have flare and lower contrast than modern lenses, so do try to locate a hood. The best bet will be Evilbay and the appropriate series filter adapter to make the shade work.
Being an Agfa, watch out for the dreaded green-snot grease that can petrify in the lens helicoid. I had to clean both of my cameras lens helicoids and re-lube, but otherwise, its a fine little camera that is fun to shoot.
Some people don't like the horizontal split rangefinder focusing system, but I don't mind it...