Advice needed please on some old lenses

Hello all,

I have inherited some old lenses that my dad used to use on his old Canon A1.

They are:

1. Canon Lens FL 85mm 1:1.8 No. 10069
2. Canon Lens FL 35mm 1:2.5 No. 20202
3. Canon Lens FL 58mm 1:1.2 No. 38988

I have no idea what to do with them? Are they obsolete?

Any thoughts anyone?

Thanks,
Mart