Christmas cards for companies and professionals working in the field
of plumbing, roofing, slating, metal work and electrical engineering

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582 Early electricity. An electrostatic machine for generating high voltages, developed by the British inventor James Wimshurst (1832-1903). To the left: an electric egg.		583 An electrostatic device for generating high voltage and a "Leyden Jar" for storage of electric charges.
	© Pro Heritage Amsterdam
580 Electricity for household use in the twenties.		581 Early electricity. Devices used in the twenties.

544 The Plumber/Roofer. Antique tools from a private collection.		545 The Plumber I. Antique tools from a private collection.
	Do not forget to see our cards of a more general character
546 The Slater. Antique tools from a private collection.		547 The Plumber II. Antique tools from a private collection.
	A difficult choice? Request a sample!
548 The Plumber III. Antique tools from a private collection.		590 Metalworks I.