Skip to content

PATENT OF PIANO CONSTRUCTION (1950): Patent Greeting Card

Login to view pricing

SKU GCA6-PTT032 Barcode 5057718088955

Text on the reverse side:

The exact middle of a piano keyboard is not middle C, but is actually the space between E and F above middle C. The impressively intricate instrument has over 12,000 parts of which 10,000 are moving parts.

  • A6 size (148mm x 105mm)
  • Luxury pearlescent eco-certified paper
  • Produced in our London studio
  • Trivia fact on the reverse
  • GS1 barcode for POS
  • Biodegradable cello bag (unwrapped option available)


    Also available as