Analog film photography and cameras

Apart from the usual checks (light leaks, lens fungus, lens scratches, etc), you may want to know

• if it's been used recently. The shutter can stick through lack of exercise. The normal remedy is to get the camera (no film), cock and release the shutter throughout every shutter speed at least ten times each. If after 100 or so exposures the shutter still seems sluggish (most apparent in the slow speeds), it needs a service.
  
• if it's ever been dropped. That's how I killed mine, some of them survive but mine didn't. The focusing should be smooth and not bind at either extremity. The lenses are mounted parallel on the face of the camera, and if there are any dents at all in this faceplate, they're likely no longer parallel. Net result is a useless Rolleiflex that doesn't focus accurately.
  Aside from the above, desirable 'extras' (which, if you're lucky are being sold with the camera) include the proper double lens cap, the original 'scissor' strap, and a Beattie Intenscreen. Any genuine filters and lens hoods are a bonus.
  I wouldn't bother about whether it has a built-in meter. A Sekonic L-308s or similar is far more useful.