Bought a couple of boxes of optical flotsam the other day, found these two pieces of interest.
The 75mm objective doublet set in a brass cell is labeled 'Reinfelder & Hertel', a name with which I am familiar as being a high-grade telescope manufacturer of wood and brass bodied telescopes in the late 1800s. While the glass is crispy clear to the naked eye upon closer inspection some schmutz can be seen between the elements and there are some scratches on the outer surfaces.
The other piece has no ID markings on it but after doing a Google Image search on Reinfelder & Hertel I found quite a few scopes that look to have the same eyepiece/end tube arrangement. The finish, wear and overal patina is the same as the cell so I'm pretty certain this is the back half of the R&H optical train. Can anyone confirm that?
I taped the objective cell to a window and looked through the eyepiece/end tube hand-held and I could roughly see an image come to focus but this was an admittedly crude test and the target was such that I couldn't ascertain if there was any image orientation correction.
The tube itself has at least two elements, not including the eyepiece noted below, so this appears to be at least a four-element design. Is this a common arrangement with R&H scopes?
The eyepiece/end tube is a bit odd in that it appears to have an eyepiece trapped behind the bezel (last photo). Makes for awful eye relief.
Thanks in advance for your inputs.