Wilde's Dynamo-Electric Machine Invention 1915 Ad Trade Card

Description

Wilde's Dynamo-Electric Machine Invention 1915 Ad Trade Card
NOTE:
THESE ARE NOT POSTCARDS - THEY ARE TRADE/ADVERTISING CARDS.
THEY ARE SMALLER THAN A STANDARD POSTCARD
AND
THERE IS ADVERTISING TEXT ON THE BACK!
THE ACTUAL CARD SIZE IS APPROXIMATELY 2 7/8 '' X 4 3/8 '' OR  7 cm. X 11 cm.
ORIGINAL 1915 TRADE - ADVERTISING CARD
WILDE'S DYNAMO
Henry Wilde (1833 - 28 March 1919 was a wealthy individual from Manchester, England
who used his self-made fortune to indulge his interest in electrical engineering. He invented
the dynamo-electric machine, or self-energising dynamo, an invention for which Werner von
Siemens is more usually credited and, in fact, discovered independently. Wilde was the first
to publish,  his paper was communicated to the Royal Society by Michael Faraday in 1866.
The self-energising dynamo replaces the permanent magnets of previous designs with electro-magnets
and in so doing achieved an enormous increase in power. The machine was considered
remarkable at the time, especially since Wilde was fond of spectacular demonstrations, such
as the ability of his machine to cause iron bars to melt.
GREAT IMAGE!
THE REVERSE SIDE HAS TEXT ABOUT THE IMAGE ON THE FRONT SIDE
SEE IMAGES ABOVE
THE CARD DIMENTIONS ARE APPROXIMATELY
2 5/8 '' x 1 3/8 ''  or  6.5 cm. x 3.5 cm.
NOTE:
THE IMAGE ABOVE IS LARGER THAN THE CARD
TO SHOW THE DETAIL.
THESE CARDS ARE NOT MODERN REPRODUCTIONS
THESE CARDS ARE 100+ YEARS OLD
THEY ARE NOT PERFECT
THERE MAY BE:
SLIGHT PAPER LOSS - SMUDGING - ROUNDED CORNERS
NOTE SLIGHT IMPERFECTION AT TOP!
SEE THE IMAGES ABOVE!
17  AUST
WE COMBINE SHIPPING
BUY 1 TO 4 TRADE ADVERTISING CARDS AND THE TOTAL T SHIP IS
BUY 5 TRADE ADVERTISING CARDS AND SHIPPING IS FREE
NOTE:
ON LARGER INTERNATIONAL ORDERS WE MAY REQUIRE REGISTERD
MAIL AND WILL SPLIT THE COST WITH THE BUYER.
INQUIRE IF CONCERNED!