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Find number abc

If 6b9c4 - 1a7ac = 4c169 find number abc. Multiple solutions may exist.

Correct answers: 0

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Five year old Little Johnny wa...

Five year old Little Johnny was lost, so he went up to a policeman and said, "I've lost my dad!"
The policeman said, "What's he like?"
Little Johnny replied, "Beer and women!"

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Protectograph

In 1904, the Protectograph check-writing machine was patented under the title “Printing-Stamp” by Libanus McLouth Todd of Rochester, New York (U.S. Patent No. 766,853). It was designed to protect against check forgers by marking and embossing the amount on a check, thereby preventing the amount thus shown to be later dishonestly changed to a higher value. The apparatus had co-axial printing wheels with lines of raised type forming a series of numbers and suitable words. A check would be placed between the wheels and a platen. An inked felt-covered roller applied ink to the type as the wheels were turned to select the chosen imprint. The platen surface had a yielding material, such as rubber. When actuated by a hand-lever, it was raised from beneath the check and embossed the paper against the type.«

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