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Portable microscopes, or “travelling” microscopes, are simply made to be more convenient to transport for field use.(Delly, 1968, 1995) The vintage Winkel-Zeiss Göttingen microscope kit under review here, as illustrated in Figure 1, consists of the Winkel-Zeiss Diagnostic Microscope itself; a set of stains and reagents; microscope slides, coverglasses, slide labels and bibulous paper; a wooden box to store objectives and eyepieces; and a set of instruments; all fitted into a very sturdy wooden carrying case.Winkel-Zeiss Military Field Hospital Microscope Kit. " data-medium-file="https:// WWII_01-300x190.jpg" data-large-file="https:// WWII_01.jpg" / Winkel-Zeiss microscope, stains and reagents set, instrument set,and wooden box for objectives and eyepieces, fitted into carrying case." data-medium-file="https:// WWII_02-277x300.jpg" data-large-file="https:// WWII_02.jpg" / The microscope supplied in this military field hospital kit was manufactured by Winkel-Zeiss, Göttingen, Germany; the serial number engraved on the microscope is 61999. Winkel-Zeiss Göttingen #94504 Winkel-Zeiss Diagnostic Microscope, No. " data-medium-file="https:// WWII_03-198x300.jpg" data-large-file="https:// WWII_03.jpg" / Winkel-Zeiss Diagnostic Microscope, No. " data-medium-file="https:// WWII_04-151x300.jpg" data-large-file="https:// WWII_04.jpg" / Winkel-Zeiss Diagnostic Microscope, No. " data-medium-file="https:// WWII_05-181x300.jpg" data-large-file="https:// WWII_05.jpg" / The objectives come stored in black plastic cases, housed in a fitted wooden container (Figure 6).The stage required disassembly, refinishing, relubrication, and reassembly.Of course the coarse and fine focus mechanisms needed to have the old, polymerized lubricant removed and replaced.The black finish was mostly missing, and the stage was badly pitted.

By coincidence, however, in July 2008 a Winkel-Zeiss microscope of the same design, but not military version, was offered on e Bay.Some chips in the paint needed to be touched up, and all of the optics thoroughly cleaned. I do not have any Winkel-Zeiss catalogs or reference material; however, I did find some information in a 1934 edition of a Zeiss, Jena catalog (Carl Zeiss Jena, 1934). Figure 7 is a copy of p.147 from this section, and illustrates, at the far right, what I take to be the immediate precursor of the microscope under review.The Zeiss Historica website ( states that “Rudolph Winkel was a contemporary of Carl Zeiss in the field of microscopes but gradually the family participation in the business declined and it was sold to Carl Zeiss who kept it as a totally separate business until 1954 when it became the microscope division of Carl Zeiss (Oberkochen). The name is seen as Winkel, Rudolph Winkel, Winkel-Zeiss, or Zeiss-Winkel. Specifically, the stand GTB most closely resembles the one in this kit, although the pillar, limb, location of focus controls, and substage condenser adjustment are of different appearance; clearly there were design changes during the decade following issuance of this catalog." data-medium-file="https:// WWII_08-273x300.jpg" data-large-file="https:// WWII_08.jpg" / What can we make of this selection?Carbol fuchsin (Ziehl’s stain; Ziehl-Neelsen), fuchsin in alcohol and aqueous phenol is used in the general study of microorganisms, and specifically, for determining leprosy and tuberculosis (leprosy and tubercle bacilli, red; other bacteria, blue). Giemsa’s solution is used to stain blood smears, and for smear preparations of unicellular organisms. Its commonest use is in Gram’s stain for the demonstration and primary classification of bacteria. Due to its strong metachromatic staining properties, it can be used for the demonstration of mucins, cartilage, mast cells, etc. objective; the original immersion oil; the refractive index (D, 20°C) = 1.5020-1.5070. In conclusion then, these stains and reagents have been selected for a wide range of hematological and bacteriological methods, including tuberculosis. It consists of a gray-painted metal box with removable tray and sliding-wire lock.

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