From the old family home, this is an Ault & Wiborg red and black carbon typewriter ribbon, 16 yd long. It is compatible with Underwood noiseless, Remington noiseless, and Remington number 17. It includes the original box, and the ribbon itself is in a sealed packet. The box is a little bent and tattered here and there from kicking around all these decades, but the ribbon is pristine.