HAPPY BIRTHDAY Greeting Card

Text on the reverse side: Image taken from a vintage electric publicity poster. Did you know that only 10 percent of energy in a standard light bulb is actually used to create light? Ninety percent of a light bulb’s energy is used up in the heat. * 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)