Yes... Fecker was a manufacturer of refractors in the 1940's and 50's, based in Pittsburgh PA. Their main line was really big refractors for professional observatories, as well as selling smaller ones (6" or so) for amateurs.
Might be OK in an f/15 mak, but no good in modern fast scopes.
The "H" in the part numbers almost certainly means they are Huygens eyepieces and by their vintage must be uncoated. Basically any modern eyepiece made in the past 30 years will work better.
Interest would be limited to those with a Fecker refractor wanting matching eyepieces for antique value, not for an real observing.