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The history of innovation in the human effort to fly with the birds is fascinating.

The colored image of the flying machine with feathered wings on this card is based on an original black-and-white line drawing from U.S. Patent No. 181,186, called Improvement in Flying-Machines, which issued in 1876.

An informative and educational description of how this flying-machine with feathered wings works is on the back of the card.

All intellectual property rights in this card are owned by sprk.plug image llc.

Product Details:

-The colored image on the card was originally created using the Adobe Creative Suite.

-The card is professionally printed using 4-color CMYK off-set printing on a Heidelberg Printing Press with a Gloss UV coating to sharpen and brighten the image.

-The card and self-sealing Mango envelope are size A7 (5" x 7") and packaged in a cellophane sleeve.

-The card is made from sturdy 120# dull/matte stock.

-Card sent in a 9.5" x 7.5" protective bubble mailer.

Order Details:

-If your order is damaged on arrival, let me know within 30 days of the date of placing your order and I will make it right.

-Please contact me to discuss discounted pricing for orders of more than a single card.

-Please contact me to discuss wholesale orders and pricing.

1876 Improvement in Flying-Machines (US 181,186) sprk.plug image Greeting Card



  • Handmade item
  • Materials: Greeting Card, Mango Envelope
  • Ships worldwide from United States