Framed Prints
Framed Print of National Standard of Mass, Kilogram
This platinum-iridium cylinder at the National Bureau of Standards is the primary standard kilogram for all metric measurements of mass in this country. It was furnished to the US by the International Bureau of Weights and Measures in accordance with the metric treaty of 1875. Recomparison with the international standard in 1937 showed that the US standard had changed by only one part in 50 million during approximately 50 years. Known as Kilogram No. 20, it is 39mm in diameter and 39mm high, and is made of an alloy containing 90% platinum and 10% iridium. © Omikron / Science Source
Your chosen combination is quickly and professionally made to order, our shipping page has more details
If you are not entirely happy with your items, simply return them to us within 30 days for a replacement or full refund. Please read our full returns policy.
Media ID 47333330
1875 20th Cylinder Cylindrical Mass Masses Measure Measurement Measurements Measures Metric Metrology National Nist Standard Standards System Systems Treaty Twenties Twentieth Twenty Weight Weights
Modern Frame 14"x12" (36x31cm)
Ready to Hang Contemporary Framed Prints adds style, protection, and a polished touch to your space - effortlessly.
Your artwork will be printed as shown in the preview. To adjust please select Edit Printed Image under the Buy button
Wood effect frame, card mounted, 10x8 fade resistant photo print. Overall outside dimensions 14x12 inches (36x31cm). Environmentally and ozone friendly, 40mm wide x 15mm Polycore® moulding has the look of real wood, is durable and light and easy to hang. Biodegradable and made with non-chlorinated gases (no toxic fumes) it is efficient; producing 100 tons of polystyrene can save 300 tons of trees! Prints are glazed with lightweight, shatterproof, optical clarity acrylic (providing the same general protection from the environment as glass). The back is stapled hardboard with a sawtooth hanger attached. Note: measurements provided are estimated outer dimensions, which include both the image and the frame. While we aim to keep sizing consistent, exact dimensions may vary slightly due to differences in print size or production requirements, which may result in a variation in the overall size (up to approximately 2.5cm (1"))
These are individually made so all sizes are approximate
Estimated Image Size (if not cropped) is 19.3cm x 23.9cm (7.6" x 9.4")
Estimated Product Size is 31cm x 36cm (12.2" x 14.2")
