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45 x 45 mm filters
45 x 45 mm filters

45 x 45 mm filters

Date1910-1920
Inventory Number1998-1-0413i
ClassificationFilters
Subject
    Maker Agfa founded 1867
    Supplier Ralph Harris & Company fl. 1910 - 1921
    User Harvard College Observatory founded 1839
    User George R. Agassiz Station, Harvard 1951 - 1982
    Cultural Region
      Dimensionseach: 4.5 × 4.5 × 0.3 cm (1 3/4 × 1 3/4 × 1/8 in.)
      Material
        Description1998-1-0413i:
        2 Agfa filters in original boxes (one box empty), marked Nr. 21 and Nr. 29 Farbenfilter 45-45 mm.







        Signedon box: Agfa [in diamond logo] stamped on box: Made in Germany sticker on one box: RALPH HARRIS & CO. / AMATEUR MOVIE EQUIPMENT / AND PHOTOGRAPHIC SUPPLIES / 30 BROMFIELD ST. - BOSTON, MASS.
        ProvenanceHarvard College Observatory, Agassiz Station; transfer to CHSI, 1969.
        Image Not Available for box of cylindrical lenses and filters
        box of cylindrical lenses and filters
        American Optical Company
        Date: 1910-1940
        Object number: 1998-1-0413
        set of Cramer yellow filters, I, II, III
        set of Cramer yellow filters, I, II, III
        American
        Date: 1910-1920
        Object number: 1998-1-0413h
        12 optical filters
        12 optical filters
        Corning
        Date: 1945-1960
        Accessories: One (1) catalog: GLASS COLOR FILTERS, Corning Glass Works, Corning, New York, in instrument file folder.
        Object number: 2009-1-0082
        color filters and polarizers
        color filters and polarizers
        Polaroid Corporation
        Date: 1970-1985
        Object number: 2004-1-0265
        box of mounted filters for 61-inch Wyeth telescope
        box of mounted filters for 61-inch Wyeth telescope
        Oak Ridge Station
        Date: 1935-1940
        Object number: 2016-1-0056
        ensemble (5) of glass color filters
        ensemble (5) of glass color filters
        Eastman Kodak Company
        Date: circa 1929
        Object number: 2007-1-0028a-e
        box of colored filters
        box of colored filters
        Eastman Kodak Company
        Date: 1970-1985
        Object number: 2004-1-0080a
        blue filters
        blue filters
        American
        Date: mid 20th Century
        Object number: 2007-1-0312
        set of 6 colored glass filters
        set of 6 colored glass filters
        French
        Date: 1860-1900
        Object number: 1998-1-0468
        box of color filters
        box of color filters
        American
        Date: 1900-1950
        Object number: 1996-1-0716
        red gel filters (19)
        red gel filters (19)
        American
        Date: 1970-1985
        Object number: 2004-1-0274
        Wratten color gelatin filters
        Wratten color gelatin filters
        Eastman Kodak Company
        Date: circa 1940
        Object number: 1997-1-1877