I haven't seen one of these before and the idea of a seat box with a back rest appealed. Not one I've seen mentioned in the Efgeeco catalogues pictured on here, I'm guessing it's one of their later offerings, 70's 80's even?
![Image](https://i.imgur.com/eqoC8fA.jpg)
![Image](https://i.imgur.com/shmtyQf.jpg)
![Image](https://i.imgur.com/HQshfT7.jpg)
If you saw my physique you'd think 10 stone of lead was involved
So am I these days, Sir !!!