Shaker Adapter and Base Plate Identification

[BluRaySRT]

I have a three piece shaker hood assembly in a hemi cuda with two four barrel Carter carbs.  Carbs are not original to the car.  I took the assembly apart  for some maintenance and noticed that the adapter plate has a 3/4" piece of plywood attached to it.  It is probably acting as a spacer to achieve the correct shaker assembly height.   I doubt that Chrysler was still building cars with wood... even in the 70's so I'm thinking that this is not the factory correct shaker adapter and baseplate assembly.  I cannot find pictures of what the correct baseplate should be given the current carb configuration. 

Can someone confirm that this is/is not a factory set up?  If not, which car was this baseplate intended for?  Does anyone have a factory correct assembly that I can see some pictures of?

My goal with this car is to bring it back to factory if at all feasible.   Thanks for your help!

Also I have seen some pictures of the baseplate having "feet".  These are not present either. 

https://www.ebay.com/itm/382898151566

[RUNCHARGER]

It's factory or repro. Sometimes the bubbles sit lower than you would think. Do you have the Schumacher hemi swap mounts perhaps? They can sit the engine too low.
Other thing is maybe your car had a taller than stock air filter element which would require spacing the bubble up to clear the air cleaner housing.
Anyway that setup minus the wood is factory or correct repro.