Time Machine 13 Carl Zeiss - Jena / Silvarem 6X30 A beautiful pair of Carl Zeiss - Jena / Silvarem 6X30, Sivarem models were made from 1910 to 1975, These appear to be from the 1930's.  Light brown bakelite eye cups, nice strap and a nice case!  The optics are very clear and they focus fine! The adjustments work smoothly.  It appears someone has tried to touch up some of the paint on the edges and left a paint run.  Otherwise a very nice pair of Zeiss!  $200. Free shipping in USA!   Carl Zeiss - Jena / Silvarem 6X30 A beautiful pair of Carl Zeiss - Jena / Silvarem 6X30, Sivarem models were made from 1910 to 1975, These appear to be from the 1930's.  Light brown bakelite eye cups, nice strap and a nice case!  The optics are very clear and they focus fine! The adjustments work smoothly.  It appears someone has tried to touch up some of the paint on the edges and left a paint run.  Otherwise a very nice pair of Zeiss!  $200. Free shipping in USA!