HP-67 keys wanted

[Kees Bouw]

Hi,

After cleaning with warm soap water, most of the keys from my HP-67 have become partly cracked. To be more accurate: in the part of the key that has been exposed to sunlight during it's lifetime, many small white cracks have appeared. It really looks very ugly, I have attached some pictures of it. The rest of the calculator is in very good condition so I would like to have better looking keys on it. Does anyone have a spare set of keys for a HP-67 for sale?

Thanks and best regards,

Kees.