Duke of Devonshire as Governor General Of Canada

Hi EXPERTS!!

I have which I think is 2 original Photos that resided in Ottawa.
One Is DevonShire...The other is his wife Evelyn. I believe they hung in his office.

They are both bound in Antique leather frames.
Both have the Coronet? from the Queen on the top of the frames (Their Initials) Both photos are signed. His is signed in 2 places. These are not glossy prints as they are antiques. How can I tell they are signed....Or Signed in print.

I'm so happy to own these!!

Value anyone?

Thanks!
DurhamDeals