An odd type differential, limited slip set up

I have seen this style final drive differential on later Ferraris like Lusso’s but didn’t realize that early cars like the 212 had this odd arrangement. Instead of spider gears and side gears, the car has these “chicklet” metal tabs that are forced between the axle drive hub and the outer case of the differential carrier. The inside “hub” has a different number of relief cuts in comparison to the outside case of the carrier so there is always pressure to make the car go forward while acting as a limited slip mechanism. You will have to study the photos carefully, we didn’t take great pictures of it all together so let your imagination do the work to understand the process

Ferrari attempt differential

Limited slip Differential

Ferrari 212 differential