Instruments to Discovery and Use of Pinback Button

English School's Instruments Relating to the Discovery and Use of Electricity, From 1 to 15, No.1 Electrophorus; No.2 Condensing Electroscope; No.3 Leyden Jar and Pith Balls; No.4 Cylindrical Frictional Machine; No.5 Ramsden's Frictional Machine; No.6 Voss Influence Machine; No.7 Wimshurst Influence Machine; No.8 Leyden Battery; No.9 Barlow's Wheel; N0.10 Sprague's Motor; No.11 Immisch's Motor; No.12 Coulomb's Torsion Balance; No.13 Faraday's Electromagnetic Rotary Apparatus; No.14 Kelvin's Quadrant Electrometer; Siemens Dynamo for Electrometallurgy photo) located at a Private Collection. The Instruments Relating to the Discovery and Use of Electricity, From 1 to 15, No.1 Electrophorus; No.2 Condensing Electroscope; No.3 Leyden Jar and Pith Balls; No.4 Cylindrical Frictional Machine; No.5 Ramsden's Frictional Machine; No.6 Voss Influence Machine; No.7 Wimshurst Influence Machine; No.8 Leyden Battery; No.9 Barlow's Wheel; N0.10 Sprague's Motor; No.11 Immisch's Motor; No.12 Coulomb's Torsion Balance; No.13 Faraday's Electromagnetic Rotary Apparatus; No.14 Kelvin's Quadrant Electrometer; Siemens Dynamo for Electrometallurgy photo) was created around the 19th century.