Digitally printed, single-reverse with four rows reinforced stitching for durability
Canvas header & brass grommet attachment
Made in USA
PLEASE NOTE: Sizes 4x6' and larger may require additional lead time of up to 3 weeks - please contact us for availablity if you have a specific need date
The International Radiation Symbol, or Trefoil, is synonymous in science and pop culture with advancements in nuclear energy. Instilling fear during the cold war and popular today as a symbol in video games and television, this distinctive danger symbol was first introduced in 1946 by researchers at Cal-Berkley to denote dangerous existence of ionizing radiation and is the ISO certified symbol for presence/exposure to radiation.
