14 mar

Holograms of Innovations & Patents

Calender 1997 with Holograms of Innovations
November and December

1997  Crown Roll Leaf. Inc. Calender 30×46 cm and an embossed hologram 15×15 cm

Crown Roll Leaf. Inc produced a very nice Calender 1997 with several important Patents & Innovations by using embossed holography. The Calender is in a perfect condition since it has never been exposed at any of our Hologram Exhibtions.

Here you can see two historical events in November 1814 and December 1877

A newspaper was printed for the first time on a machine press on November 29, 1814

The phonograph was invented by Thomas Alva Edison December 6, 1877


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