Can't tell you exactly what you have, but I had very good service from
John@focalpointlens.com. He fixed three elements (two separations) on my Mamiya Press 75mm.
Give him a call at Phone: 303-665-6640.
Maybe those pics would mean something to him. Easy to reach and good to talk with when. His web site is:
http://www.focalpointlens.com/
I'll not get into price discussion, but weighed against my valuation of my lens, and the possibility of getting the same problem buying another lens, I went for it and I was happy since I then knew what I had.
In my case he cleaned three surfaces of whatever adhesive was on the original surfaces, and I believe he used a more contemporary adhesive putting it back together.