PWA-2006 Wrench, Socket (4.5"L) 1/2 Male drive, 9/16 Cyl Base Nut, for Pratt & Whitney R1830, R2000 Twin Wasp engines
My guess would be that no. 1, 2, 3, and 6 from the top were modified and 4, 5 and 7 are how they all should look.
There are people that collect PWA stuff