34 Fordor rear seat

[34 FORDOR]

Would like some help from 34 owners please. I have a 34 Fordor which is missing the back rest of the rear seat. ( I have the base and is ok ) I have bought a new back rest spring, but not sure if it needs a frame or how it attaches to the body. There appears to be 2 hinge like fittings on the floor and a clip on the rear of the body. Some photos of a seat and fittings would be real helpful.