Here are the pictures. From left to right: 1pF, 10pF, 100pF
The 100pF one has the worst plastic spacer, and probably not a coincidence that the CAL rejection sticker also tells "Drifts"
The spacer is cracked also on the 10pF capacitor, but no chip is missing.
I am fairly certain that the 1pF one is in perfect shape, and can be adjusted up to specs by the small screw.