I brought this for an Orion ED 80mm, which I have sold 5 years ago. It also fits onto a Skywatcher 100mm F5 achromatic and possibly other scopes.
From memory, it is about 18 years old. The outside looks a little dirty, but I have never attempted to clean it. I thought the inside was clean, but the attached image shows up every bit of dust!
When I hold it up to the Sun, I could not see any pinpoints of light shinning through. There is an image of that also, though it was difficult to hold it with one hand and take a photo with the other. The Sun can be seen slightly above the center.
Posted $40 anywhere in Australia with a tracking number.
I decided to risk cleaning this. I can now describe this as being in good condition, which is easily seen if U compare the below image to the that in the original posting.
