Reis telephone transmitter, 1863

Telecommunications

1863

Reis telephone receiver, 1863

Telecommunications

1863

Photograph of 'Max', first gorilla born at a West German zoo

Photographs

1965-08-23

Reis telephone, 1863.

Telecommunications

1863

Hartmann and Braun voltmeter no.10222 scaled 0-650V

Electricity Supply

1890

Indanthren Dyestuffs on Mercerized Cotton Yarn, IG Farben, 1925-1951

Industrial Chemistry

1925-1951

Astronomical clock with planisphere face designed

Astronomy

1880-1899

Indanthrenfarbstoffe auf Baumwollgarn, IG Farben, 1947

Industrial Chemistry

1947

Samaron Dyestuffs in Textile Printing, Hoechst, 1951-1974

Industrial Chemistry

1951-1974

Remazol – Dyestuffs for Printing, Hoechst, 1951-1974

Industrial Chemistry

1951-1974

Indanthren Dyeing Patterns, Indanthren Warenzeichen-Verband

Industrial Chemistry

Dyeings on Rayon Hanks, IG Farben, 1925-1951

Industrial Chemistry

1925-1951

Sulphur Dyestuffs on Cotton Yarn, IG Farben, 1925-1951

Industrial Chemistry

1925-1951

Peregal O, IG Farben, 1925-1951

Industrial Chemistry

1925-1951

Remazol – Dyestuffs for Printing, Hoechst, 1951-1974

Industrial Chemistry

1951-1974

Atomiser, Frankfurt, Germany, 1900-1936

Therapeutics

1900-1936

Remacryl Dyestuffs on Acrylic Fibres, No. 522, Hoechst, 1951-1974

Industrial Chemistry

1951-1974

Garment Dyeing, IG Farben, 1925-1951

Industrial Chemistry

1925-1951

The Chrome Dyestuffs, IG Farben, 1925-1951

Industrial Chemistry

1925-1951

Food mixer model KM31 with attachments

Domestic Appliances

c.1960

Direct Dyestuffs on Cotton Yarn, IG Farben, 1925-1951

Industrial Chemistry

1925-1951

Peregal O, IG Farben, 1925-1951

Industrial Chemistry

1925-1951

Thermosol Dyeings Volume 2, Hoechst, 1951-1974

Industrial Chemistry

1951-1974

Indanthren Dyestuffs – Two-phase Printing Process, Hoechst, 1951-1974

Industrial Chemistry

1951-1974

Säurefarbstoffe Acid Dyestuffs, Hoechst, 1951-1974

Industrial Chemistry

1951-1974

Indathren Dyestuffs on Cotton Yarn (1. Self Shades), IG Farben, 1925-1951

Industrial Chemistry

1925-1951

Indathren Dyestuffs on Cotton Yarn (1. Self Shades), IG Farben, 1925-1951

Industrial Chemistry

1925-1951

Remazol – Dyeings on Yarn and Slubbing of Cellulosic Fibres’, Hoechst, 1951-1974

Industrial Chemistry

1951-1974

Navy Blue Shades on Woollen Piece Goods, IG Farben, 1925-1951

Industrial Chemistry

1925-1951

Remazol – Dyestuffs for Printing, Hoechst, 1951-1974

Industrial Chemistry

1951-1974

Hobby Special EF2 Flash Pack

Photographic Technology

1935-1955

Photograph of baby gorilla Julchen at Frankfurt Zoo

Photographs

1966-10-25

Rapidechtfarben Rapidogen G und Indigosole, IG Farben, 1925-1951

Industrial Chemistry

1925-1951

Rongalit C-Ätzen auf Substantiven Kunstseiden, IG Farben, 1925-1951

Industrial Chemistry

1925-1951

instrument to measure maximum demand and record du

Electricity Supply

Säurefarbstoffe Acid Dyestuffs, Hoechst, 1951-1974

Industrial Chemistry

1951-1974

Dyeings on Polyamide Fibres, Hoechst, 1951-1974

Industrial Chemistry

1951-1974

Indanthren Dyeing Supplement, Indanthren Warenzeichen-Verband

Industrial Chemistry

Remazol Dyeings by the One-Bath Pad Batch Process, Hoechst, 1964

Industrial Chemistry

1964

Zaponechtfarbstoffe, IG Farben, 1925-1951

Industrial Chemistry

1925-1951

Substantive Dyestuffs on Cotton Yarn 1, IG Farben, 1925-1951

Industrial Chemistry

1925-1951

Substantive Colours on Cotton Yarn, IG Farben, 1925-1951

Industrial Chemistry

1925-1951

Hydron Blue on Cotton Yarn and Cotton Pieces, IG Farben, 1925-1951

Industrial Chemistry

1925-1951

Thermosol Dyeings, Hoechst, 1951-1974

Industrial Chemistry

1951-1974

Samaron – Farbstoffe auf Geweben aus Polyesterfasern, Hoechst, 1951-1974

Industrial Chemistry

1951-1974

Dyeings on Jute Yarn, IG Farben, 1925-1951

Industrial Chemistry

1925-1951

Indanthren – Farbstoffe auf Baumwolle, Hoechst, 1951-1974

Industrial Chemistry

1951-1974

Sulphur Dyestuffs on Cotton Yarn, IG Farben, 1925-1951

Industrial Chemistry

1925-1951

Cellitazols, Celliton and Celliton Fast Dyestuffs, IG Farben, 1925-1951

Industrial Chemistry

1925-1951

White Discharges on Unweighted Silk, IG Farben, 1925-1951

Industrial Chemistry

1925-1951