Carl Zeiss Jena Deltrintem 8X30 Binoculars Serial Numbers

I also have what I believe is the original leather covered hard case for it.

It's stamped in tiny digits that are difficult to read due to age and some loss of the finish, but it appears to be 1843455. The number on mine is stamped on the ring at the 'far' end of the hinge, between the objective lens. I can find no active web links to help me pin down the manufactur date of these vintage binoculars.

The serial number on mine is not in the same place as the seen other two specimens seen in this thread. I just purchased Carl Zeiss Jena Deltrintem 8x30 binoculars from a fellow CN member. The leather strap has lost one of the 'buttons,' and someone, long ago, did some careful hand-stitching with slender string to return functionality to the strap. You can find a narrow strap and a small soft case included with the binoculars. The specimen we’ve tested is marked with a serial number of 6206318 which means it was produced in 1985 and, being so, it already boasts newer multilayer coatings. More of the painted finish has worn off the corners and edges of the metal. Its production, already under the Doctor brand name, ceased only ca.1995. Mine are in somewhat poorer condition, cosmetically, than yours. (Collimation was a bit off in mine, too.) They charged me $192, which included return shipping. They fixed those, cleaned and lubed it, and collimated it. Mine (inherited from my Dad) had all the motions seized up (focus, IPD, diopter on the right eyepiece). I sent mine to Land, Sea, and Sky in Houston. Do these older Zeiss binoculars have much collector value? This one does have its original case. That is a very valid point questioning if it is worth having these cleaned vs selling and getting a more modern binocular for use. After doing a bit of looking I don't think I'm brave enough to try cleaning these myself.

Carl Zeiss Jena Deltrintem 8X30 Binoculars Serial Numbers