I also think the photo was reversed. His breast pocket with handkerchief is on the wrong side.
I feel that until someone can show me a left handed person with arm growing out his left shoulder have that reversed and have it grow out his right shoulder by flipping a picture would prove to me that it can be done.
Also my Father in law has been left handed all his life until he passed.
He dressed with anything important on his left side, like pocket handkerchief, phone, lapel badges even the way his suit buttoned was opposite to those who are right handed.
Until I see someone come up with a dual pic set of a right handed person with a pen in their hand and a flipped version of it showing then to have that clearly show what is being said as a fake pic? Then you will have us all believe, use a mannequin or a teddy bear and a post-it taped to each arm.
These are two different individuals.