Hello all.
I was approached the other day by a military historian who has bought some medals that appear to belong to my 2nd great grandfather. He wanted to share information / reunite the medals with the family.
The medals concerned are a Tubruk/Suakin medal and a Khedive star, both in good condition, along with a photograph supposedly of my 2nd great grandfather (!!). I knew we had some medals and although my mother has been obstructive to my enquiries I found an old photo that show that we have a Khedive star and a LSGC medal of his. He was entitled to the Tubruk medal but we don't appear to have it in our collection. The historian suggests that we probably have the original Khedive and the one he has is a later addition (he has shown me the photos of the ones he has, along with the name inscribed on the Tubruk medal).
As far as the photo goes, I have asked older members of the family if they believe he shares any family resemblance to his son/grandsons. While we all appear to be equally bad at determining this, I think I do see a marked similarity between the man in the photo and one of his grandsons. That said, one of my cousins has a partner with supposed military knowledge who has shed doubt on pretty much everything, from the time period to the geographical location of the uniform (I have excluded this for a reason).
The historian is happy to keep the medals (and no rush of course) but if I wish to buy them (and I do!!) he has asked that I pay what he originally paid, which is a significant amount. He has shown me the original listing to verify his quoted price.
Essentially this post in in two parts-
Firstly, I'd like advice on making an expensive transaction of this nature. They probably do belong to my great great grandfather and I feel they should be reunited with the rest of his belongings. I'm mildly annoyed that they got separated and sold in the first place and have no idea who did it. I also have no idea how much these medals are usually worth.
Secondly, despite a growing feeling that he's the right person, I'd like to address my cousin's concerns about the photograph. I haven't mentioned the time period or military details with a view to getting expertise on the photograph itself, posted with permission. I can elaborate on both the opinion and on what it is meant to be if desired.

Thanks in advance
Ayashi