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Showing posts with label postcards. Show all posts

Showing posts with label postcards. Show all posts

Wednesday, July 8, 2015

Ink Trivia Government Ink

Question: What ink formula is the standard for use in the United States Post Office? Answer: 11.7 grams of tannic acid, 3.8 ...

Thursday, July 2, 2015

Ink Trivia

Question : What is the oldest ink-written postcard? Answer: The oldest ink-written postcard ...

Tuesday, March 3, 2015

Postcards: A wonderful way to keep in touch without a timely commitment

The Ingenious Postcards The first postcard was issued by the United States Post Office Department on May 13, 1873. The marks for mailing...

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