NO. You have it wrong. Sometimes a square chin really is a square chin. Deal with it.
Testy when cornered eh Robert?
Here is your problem.
You stake a very big part of your claim the backyard photos are fake on the assumption the chin that appears to be square cannot be Oswalds. You say his head has been added above the chin to a body that looks amazingly like Oswalds. You are not alone, this is a CT staple, and you parrot the claims.
However you are unaware that camera position in relation to the subject can change drastically the look of an object. My MacBook Pro photo showed in graphic detail how this process works.
Clearly the camera was well below the chin level in the backyard photos, this cannot be denied.
Why?
First the camera, and Imperial Reflex was designed as a waist level finder camera. It had no eye level finder. To compose the user needed to hold the camera well below the head and look DOWN to the ground glass inside of the finder housing.
Second we also know the camera was held that low by viewing the internals of the photos themselves. On the left side of the backyard photos are a set of stairs. These stars make a great tape measure. If we can see the top side of a stair tread, the camera is above the level of the step. If we can see the underside of the stair tread the camera is below that tread. Viewing these stair tread proves the camera was well below the level of Oswald's chin.
We are looking at Oswalds chin from below.
As my image strip of Obama has shown, Obama has a pointy chin similar to Oswalds.
Viewed from eye level it looks pointy just as Oswald's does.
Viewed from below, Obama's chin appears square, just like Oswald's
The major plank of your claim rests on your statement that Oswald has a pointy chin and not a square chin and the BY photos show a square chin thus they must be fake.
Empirical testing and observation of other well know people show that the common way a pointy chin is depicted in photos from a low camera angle is to appear SQUARE.
The square looking chin on Oswald in the backyard photos is EXACTLY WHAT SHOULD BE EXPECTED. This is the exact opposite of your claim.
Clearly sometimes a square chin is just a square chin. But the nature of perspective tells us that a point chin will ALSO look square when photographed form certain angles.
There is no anomaly with Oswald's chin. It is depicted exactly as perspective demands.
Your failure here is a classic example of what happens when you parrot something without having the knowledge to know if the claim is correct or not.
Now, you can't tell us this is not Oswalds chin because it looks square. Oswalds chin SHOULD look square in the backyard photos and I've just explained why.
So NO..YOU have it wrong.
Get over it.