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110249 Carl Kellner%u2019s Successors %u20ac1.500Belthle & Leitz Telescopec.1865, condition B+ %u20ac 3.000 %u2013 3.400Extremely rare and early telescope made by Carl Kellner%u2019s successors and associates Friedrich Belthle and%u00a0Ernst Leitz after heprematurely passed away in 1855, engraved with %u2018C. Kellner%u2019s Nachf: Belthle & Leitz in Wetzlar%u2019 on the side, no serial number, 77.5 cm fully extended 4 pieces brass construction with wooden veneer on the largest barrel, front lens diameter 5.2%u2009cm.%u00a0In 1849Carl Kellner founded his %u2018Optical Institute%u2019 in Wetzlar, the forerunner of the Leitz company. At first, he mainly designed astronomicaloculars and telescopes, and later also microscopes. It is in remarkably good condition in the face of its age, and in working order, good optics, together with matching brass front lens cap.250 Leitz Microscope IV no. 8115 %u20ac500no. 8115, 1885, condition B/A %u20ac 1.000 %u2013 1.200Rare extremely original early Leitz microscope IV, in very good condition, 3 lenses turret, with oculars nos.1 and 3, lenses nos.1/12 (with brass canister), 3 and 7, set of 3 apertures%u00a0(with holder), withoriginal Leitz document, with originaloutfitwooden box with(matching serial number), together with Enuro (Wetzlar) scale with loupe.251 Leitz Microscope Lenses %u20ac2.000*Cut-Aways Collection1930s-1950s, condition A/B %u20ac 4.000 %u2013 5.000A beautiful presentation set of cut-away Leitz microscope lenses. Various production years and various models. Ranging approximately from the 1930s to 1950s, in excellent condition, with a padded case.252 Leitz Binplastico 30%u00d7 90 %u20ac10.000Observation Binocularno.133039, 1928, condition B %u20ac 20.000 %u2013 24.000The Leitz Binplastico 30%u00d7 90, produced in 1920s by Ernst Leitz Wetzlar, is an extremely rare and distinctive observation binocular. It features 30%u2009%u00d7%u00a0magnification with 90%u2009mm objective lenses,providing a field of view of 26.2 meters at 1,000 meters. Thebinocular measures 77 cm in length, 21 cm in width, and weighs approximately 10kg (excluding the base). A notable feature is its swivelling eyepiece unit, which allows the interpupillary distance to extend up to 16 cm, enabling simultaneous use by two observers. The Binplastico%u2019s unique form and optical configuration requiredintricate prism arrangements, showcasing Leitz%u2019s innovative approach to optical engineering of the era. Due to its limited production, the Binplastico is considered a significant collector%u2019sitem and a testament to early 20th-century optical design. Theoffered example is in excellent condition and remains fully functional.It includes a coin-operated mechanism that allows viewers to use the binoculars for approximately one minute. The heavy metal base is engraved with the names of German cities and other attractionsthat could be viewed from the binocular%u2019s location. Additionally, the set includes a large wooden carrying crate, original tokens stamped with the Leitz logo, and keys for the clockwork mechanism. Only a few of these rare binoculars are known to exist, with the offeredexample being the only one known in this particular configuration.247 Ernst Leitz I and II, O. Barnack %u20ac600*Paintings and Portrait1930-50s, condition A%u2013 %u20ac 1.200 %u2013 1.4002 high-quality vintage reproductions of portraits representing Ernst Leitz I (1843%u20131920, original painting by Georg Tronnier, 1917) and Ernst Leitz II (1871%u20131956, original painting by Fritz Reusing, 1924), 39 %u00d7 49.5 cm on dibond, with a reproduction of the farm-house of the family Barnack, birthplace of Oskar Barnack (1879-1936), painted by his wife%u2019s nephew K. Alexander in 1931, 33.5 %u00d7 24.5 cm photo paper glued on cardboard, together with a classic original portrait of Ernst Leitz I, 55 %u00d7 41 cm silver print on cardboard, all in mint condition.248 Leica Award of Merit medals %u20ac500*1925%u20131936, condition A/B %u20ac 1.000 %u2013 1.200Rare set of Leica Award of Merit medals rewarding photographers using Leica cameras, representing Oskar Barnack (artwork Jeno Juszko), two bronze, awarded to Ralph J. Amdursky (1936) andJ. Winton Lemen (1938), two massive silver, one awarded to G.W. Brown in 1936 and the other is still blank, all in almost mint condition, together with a mint porcelain badge for exhibitors at the Leipzig Spring Fair 1925, mounted on a pin%u00a0(no.%u2009134907), all itemscoming with documentations.Leica Accessories253 Leitz 3 %u00d7 13.5 Bilustra %u20ac700Binoculars goldno.176615, 1936, condition B/A %u20ac 1.400 %u2013 1.600Rare, early version of the Leitz Luxury binoculars, gold-plated body and lizard-skin covering, special case with mirror, in very good condition, good optics only showing some light spots, with strap,it is interesting to note that similar binoculars were sometimes delivered with the famous gold plated cameras Leica Luxus!254 Leitz Mardocid 12 %u00d7 60 outfit %u20ac1.000no. 560313, 1954, condition A/B %u20ac 2.000 %u2013 2.400High-magnification Mardocid 12%u2009%u00d7%u200960 binoculars in excellentcondition and good working order (only minimal flaws in the optics),including a very rare binocular tripod adapter in hammertone finish, as well as a matching TOOUG tripod.