Simply stamped JD. Bullseye condensers contain a convexed lens that is used to focus and control the light illuminating a subject under a microscope.

 

old_devil Store VINTAGE ZEISS SPECTROSCOPE HAND HELD PORTABLE CASE MEASURE SPECTROMETER Description: CARL ZEISS JENNA Nr 4518Hand held spectroscope in velvet lined leather covered case with glazed end

 

Italian drawing instruments set from the first half of the 20th century. The instruments retain a good patina with about the 80% of the original lacquer finish and some oxide spots (the pictures with

 

I BY FAR AN EXPERT IN THESE,,I THINK CIVIL WAR ERA,,PLEASE SEE PICTURES FOR CONDITION

 

You are bidding on a Vintage Cooke, Troughton & Simms Model # VO 547 Theodolite Transit complete with it's original wooden case and two leather pouches with accessories. Recently purchased at an e

 

This steam engine measures at 15 1/2 x 11'' and a 8" wheel diameter. Everything works perfectly just as it should, Nothing is seized up.

 

Antique Pair Folding Pince-Nez Eyeglasses Use or Wear as Pendant Jewelry c1910s Description: This is a vintage pair of folding spring steel pince-nez eyeglasses dating, I would guess, to the early 190

 

HOT BOX WARMER for EYEGLASS FRAME GLASS BEAD MODEL #5060 You are bidding on a used Hot Box Warmer. It does have some scratches and a couple of small cracks on the top. It powers-up and appears to heat

 

Large Apothecary or Chemist jar with nice Label inside....original Tin cap ..BID EARLY IF YOUR INTERESTED.. I RESERVE THE RIGHT TO CANCEL THIS AUCTION IF THERE ARE NO BIDS LAST DAY..IT`S AN $80 BOTTLE

 

Microscope objective in can, the lid engraved, '7', E. Leitz, Weztlar'. The objective is also similarly signed. I cannot see any cracks, chips or damage anywhere to the glass parts.The objective and c