I was given a 23C today, it's covered in grime but still in good shape under the dust. The filter drawer over the lens is broken, it has no neg carriers and has a 50mm Beslar lens. The light still works. Bellows looks intact. A bit of rust on some struts that can be cleaned, the aluminum parts are uncorroded. This would be a good project for an enthusiast with a tight budget. Come by the house and pick it up it's yours.