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M. KATERA microscope commercialized from 1914 (Taisho 3) to 1931 (Showa 6) (in no particular order)
M.KATERAのインデックス
1914(大正3年)～1931(昭和6年)に製品化されたM,KATERA顕微鏡(順不同)
Helen Purtle writes in the Billings Microscope Catalog (1974, page 113):“Reichert established his business in 1876, and in 1930 introduced a small portable microscope that he supplied to the Japanese Army. The latter instruments were marked as if Japanese made, but it is not known if Reichert established a factory in Japan.”This bit of industry gossip is not documented; did she know, or did she assume that Reichert made a deal with the Japanese military? She thought Reichert might have done the actual manufacturing of the MKH, but we know that is not the case, at least for the Tiyoda-branded production. Accepting Purtle's statement, it appears that the Japanese military licensed the Heimdal design from Reichert, who was actively marketing it for just that purpose, and assigned the license to Tiyoda for production. Purtle's 1930 date should be 1929 according to the History of Tiyoda Microscopes website. In 1929, Tiyoda was still known as “M-Katera”, and microscope model names began with“MK”. The “H” is for “Heimdal”, so the model designation “MKH” signifies“The M-Katera Heimdal”.
Unknown model designations;
