My last post was on cleaning up an old Focal 10x50. It was not a Bak4 bin. It actually does fairly well. I have had issues with the latest project. It is also a focal 10x50. However, It is a bit newer, and has 1 piece body. The barrels do not come off so cleaning the objectives was a little challenging. I had to buy the optical spanner/wrench to remove and replace after cleaning them. I got to swab that side of the prism to while I had them out. Now for the current challenge. I want to remove the eyepieces, clean their undersides and also that end of the prism. This Focal is different from the older one and a couple of other bins I have taken apart. The **** access from the front(behind the tripod mount hole) to enable you to pull the eyepieces and "bar" out does not have a slot in it. There is hole in the middle of it but it is not an allen wrench shape. It is purely round. There are lines you can see that "look" like they would be slots for a screwdriver. Unfortunately, these lines are barely there. I tried to use a very small screw driver to just scrape then to see if I caould even feel a bump or resistance when it crossed them. I couldn't tell they were even there. Attached you will see a photo of the whole and the bottom where there should be a slotted head to release the eye piece "bar". If you could tell me what that "bar" is called, I would appreciate it. You will also see a picture from the eye piece end posted. I thought that maybe the lenses would come out if there was a screw behind the cap between the 2 eyepieces. However, I have attempted to unscrew it. Even using a pliers and rubber to protect the cap and gain some grip. I am a bit reluctant to pry with screw driver as it ill probably damage the plastic cap. If anyone has any ideas on how to tackle this, I would very much appreciate it.