The worst shipping issue I ever had with USPS was way before covid. I got a great deal on a manual transmission center console for my old 67 GTO. The seller just wanted it gone and I paid $100 plus shipping for it. From the pictures it looked perfect I would just have to color match the plastic...
It's for adjusting the tension of flight control cables ( and other cables) then secured with the jamb nuts and or safety wire. If you can still make out the threads on the rod ends (pin forks) one should have standard right hand treads, and the opposite one should have left hand threads.
Rob I think its an optical illusion. The A6M5 has a taller engine cowling and the panel in front of the windscreen just goes straight. While the panel on the A6M2 slopes down to the smaller cowling.