Does anyone know how I would date my Carl Zeiss Binoculars that I bought today?

[gypsywhitebubbles]

I found a great pair of Carl Zeiss binoculars today at a jumble sale.  They look old and come in a leather case.  The markings are "Jena" and "Binoctar 7 x 50".  I would love to know how to date them with a view to sell - but I can't seem to find a serial number.

[siddieswans]

If you Google  "Binoctar 7 x 50" you will find references to several recent sales on eBay. I once thought to sell a vintage pair of Zeiss but gave up - there are so many things to be aware of, principally whether all the lenses (front and back) are in good condition with no cracks or scratching. But good luck.

[imastawka]

Maybe the listings will help.   There seems to be a lot of information and

close up photos

http://www.ebay.com.au/sch/i.html?_sacat=0&_from=R40&_nkw=carl+zeiss+binoculars&rt=nc

After that, click on 'completed listings'

[imastawka]

This also,  but I think you have to find that serial number

http://www.europa.com/~telscope/zeissbin.txt

good luck