Thanks Kasmos, yes a search did not produce many results. Boxes seem to vary a lot depending on the individual who was making them I suppose. I'm pressing ahead with what I think it should be.
Here is the box vacuumed out and ready for repairs. There is one crack on the bottom of the box that needs repair. Other than the dislodged and missing block the box is in relatively good shape.
Cleaned the objective, it is in good shape but it appears to have pinched optics. There is a spacer ring instead of the foil tabs. Tried loosening the retaining ring, wont budge. I'll keep at it till it does loosen. Then check the rings under mono light again and see where they are at.
In the box there were two lenses floating around loose with an empty barrel and some spacer rings.
Another fun little project, along with my Unitron, 4 more microscopes being restored and a surveyors transit I'll be busy for a while.
Edited by mikerepp, 26 May 2022 - 05:20 AM.