This is a very stange Famo. I found two prictures, which proove that this design existed. But it looks more like a field modification, maybe based on a damaged Famo with a 10 ton Bilstein crane.
Here you can see the original version:
https://www.forum.axishistory.com/viewtopic.php?t=178247&start=120
Famo 40 ton winch 144 002 (rep)