The first over-ear headphones, recognisably similar to current ones, were made for the US navy in 1910. This patent, dated 1966, is a design for high fidelity music, and pure listening pleasure.
The giclée inks used for this reproduction of the original patent drawings are archival quality and have a high fade resistance. The poster is printed on premium lustre paper.
Unframed. Check out our magnetic poster hanger.
Dimensions: A2 (420 x 594 mm)