Here we have an interesting ~ ANTIQUE 1919 WWI ERA KEUFFEL & ESSER NEW YORK MARK XVII MOD. 5 UNUSUAL PERISCOPE FORM TELESCOPE ~ that was just acquired out of a Detroit area estate. We've never seen one of these before and imagine it is a fairly hard to find item. The over all condition appears to be pretty decent as best as we can tell " untested though ". It measures approximately 27 inches long by about 7 1/2 inches wide " at the handle area " and is amazingly he...avy weighing about 37 pounds. It is extremely well made and very high quality. I believe that the majority of the telescope appears to be brass? The end cap spins to expose the one lens. It looks to us, to be in pretty much all original untouched condition. Being sold as found from an estate so PLEASE FEEL FREE to email me with any questions you may have and I will be happy to help! The new owner is to pay 45.00 for secured FEDERAL EXPRESS insured shipping with confirmation Tracking in the lower 48 United States. International buyers this item is being shipped through the Ebay International Global Shipping Center Program where many of the fees are to be paid up front. I will package this antique clock with ~GREAT CARE!~ to ensure it arrives at its new home in as seen condition Thanks! Jeff