2 SLR lenses. Jessop & Hanimex. .

I have recently found 2 old lenses on a clean out. Hopefully they may be use to someone! One is a Jessop. 31mm, 21mm and 13mm. This one comes apart as 3 pieces. The other is a Hanimex. Automatic, 1 : 2.8, f = 28mm, No. 902707. Both look in good condition. I am unsure what these lenses would fit. Collection from BS4 only.