Hi! What a surprise to read your post. I am also descended from Claus' 3rd wife Julia. I don't have any pictures at all and would be extremely grateful if you were to scan and send me what photos you have. My father would be the only person I could think of that may have a photo of Claus, unless his brothers do. My father passed away and after his death last year, all of his possessions 'disappeared' from his home.
I'll ask my uncles if they inherited any photos or family momentos. I look forward to hearing from you.