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26Leica Screw Mount Lenses50 Hektor 6.3/2.8 cm %u20ac2.400HOOPY nickelno. 273705, 1936, condition A/B %u20ac 5.000 %u2013 6.000Very rare nickel version of the 2.8 cm Hektor HOOPY, in meter scale, in beautiful, almost mint condition, good optics only showing a few discrete cleaning marks, delivered on 13.06.1936 to Tiranty, Paris, with both caps and bakelite keeper.51 Hektor 6.3/2.8 cm %u20ac450HOOPY chromeno. 273748, 1936, condition A/B %u20ac 900 %u2013 1.000Beautiful early chrome Hektor 2.8 cm from the second batch of production, meter scale version delivered to famous retailer Tiranty in Paris, on 13.03.1936, in almost mint condition, clean and clear optics, with both caps and SUOOQ chrome finder.52 Hektor 6.3/2.8 cm chrome %u20ac700no. 452104, 1938, condition B/A %u20ac 1.400 %u2013 1.600Nice pre-war chrome version in very good condition, optics showing a light haze, %u2018I.R.S.I.A.%u2019 (for %u2018Institut pour l%u2019encouragement de la Recherche Scientifique dans l%u2019Industrie et l%u2019Agriculture%u2019, a Frenchinstitution for the post-war reconstruction of industry and agriculture) hand engraved on the mount, with both caps, chrome SUOOQ finder and leather case, delivered to Berlin on 10.10.1938.53 Elmar 3.5/3.5 cm nickel %u20ac700c.1930, condition B/A %u20ac 1.400 %u2013 1.600Beautiful early 7 o%u2019clock unnumbered EKURZ nickel Elmar, RF coupled, in very good condition, only showing a few tool marks and a light dent (not affection the operation), with very good optics,with matching early unmarked red maker%u2019s box.54 Stemar Midland 3.3/3.5 cm %u20ac2.200outfit OIRZO-Sno.1124462, 1954, condition A/B %u20ac 4.400 %u2013 4.800Very rare Canadian made Stemar in M39 screw-mount, in almost mint condition, very good optics, 6 aperture blades, note the front of the lens mis-engraved with %u201833 cm%u2019, with rear cap, OIMPO prism no.%u200911646, OIDYO viewfinder (leather case), OIGEO lens hood%u2018Midland Ont.%u2019 engraved, andoutfitred maker%u2019s box (cond. B+).55 Summar 2/5 cm nickel rigid %u20ac1.000no.190691, 1934, condition B/A %u20ac 2.000 %u2013 2.400Beautiful and very rare early rigid Summar in original, very good condition (light dent on the filter ring and light signs of corrosionon the barrels), optics in good condition (only showing a couple of light spots), with both black paint caps, delivered to Hattingen,Germany, on 04.01.1934, according to the delivery records fewer than 2000 Summar lenses in rigid mount have been made, starting from 1934 Leitz also offered a conversion from the rigidmount to collapsible, which makes the already uncommon lens very rare nowadays.56 Schneider Xenon 2/5 cm %u20ac4.000*black paintno.1823621, 1946, condition B+ %u20ac 8.000 %u2013 9.000An extremely rare black-painted Schneider Xenon 2/5 cm in collapsible, rangefinder-coupled M39 mount. The mount is made ofbrass, a feature that clearly distinguishes this early version from the later chrome production type. The present lens belongs to a very small batch of only 8 examples delivered to Leitz in 1946. This unusually small delivery may suggest that the lenses formed a sample or evaluation batch, possibly at a time when Schneider and Leitz were considering some form of cooperation. In addition to its black-painted brass mount, the lens shows several minor constructional differences from the later chrome version. The collapsibledesign follows the general form of the contemporary Summar and gives this early Xenon a particularly distinctive appearance. The lens is in fine condition, with clean and clear optics, showing anattractive patina from years of use. To our knowledge, this is onlythe second example of this black-painted Xenon with brass mount that we have encountered.