Identify This Eyepiece

Need help identifying this eyepiece, if it was part of a telescope package when first sold, history, etc. Thanks!

Attached Image:

It is a 10.5mm GALOC orthoscopic eyepiece that was sold in the 60's and 70's by many sources. I have both the 10.5mm, 16.3 and a barlow. All are excellent performers.

I do not think that it was part of any scope package but I have it listed for sale from Cave Optical (just under $20 as I recall) and Telescopics. The Galoc line included a 7mm ortho, 10.5 ortho, 16.3mm widefield, 28mm ortho and a barlow. I also ran across a 4mm Galoc a few yeas ago. In the 60s I bought a 16.3mm from Cave and absolutely loved it. So much so that I now have two and plan to keep at least one for as long as I am observing.

If yours is in good shape optically, I predict that the images will be very impressive. I have tried many modern top-end eyepieces and while optical coatings have improved, the optical quality of the Galoc is a match for anything.

Actually, the brand was Gailand (Gailand Company), and yours is a true Abbe orthoscopic. "Galoc" is an eyepiece design, which Gailand offered in a 16.3mm focal length. Gailand Abbes were offered in 4mm, 6mm, 7mm, 10.5mm, 16.8mm & 28mm. As far as I know, Gailand eyepieces first hit the market in the early 1960s. Telescopics later included a few Gailand eyepieces in their lineup (including the 16.3mm), as did Cave (not sure about the 16.3mm). According to Gailand ad copy, each optical surface was pitch-lap polished and MgFl coated.

Gailand specified apparent fields of 45 degs. for the Abbes and 90 degs for the "Galoc," but owners of the 16.3mm have noted an apparent field closer to 75 dges. Further confusing things is the fact that Gailand ads included a cross-sectional diagram of the "Galoc," and the diagram clearly shows a 1-2-1 Konig, not a 3-2 Galoc. I suppose it is possible that the diagram in the ad copy was simply an error/oversight and that the eyepiece was a true 3-2 Galoc. However, the diagram seems quite specific to Gailand, and the indicated field stop does correspond to an apparent field of ~70-75 degs. I've read no reports from any disasemblers confirming or denying either design (Galoc or Konig) as being that of the 16.3mm Gailand.

That's enough babble from me.
Cheers and best wishes.
-Dan