An old Zeiss Ikon Contessa 35mm - the folding one. I'm sure most here wouldn't be surprized at the quality of the photos it gives, but this thing is in sad shape, so I wasn't expecting much.
It came to me last year from a distant cousin's musty kerosene-warmed farmhouse, where it had sat unused since the mid- to late- 60s. The leather is peeling and mottled, the meter doesn't work, it has a terrible musty smell, and a great deal of fungus on the lens. Testing it was also my first attempt Sunny 16.

In strong sun the fungus diffused the light in certain areas, causing strangely blurred regions on the film (I checked, and it is the fungus, not lens flare). However, in moderate lighting the images were excellent.