This is a new but dusty tyre, made by Heidenau and for a rear wheel. It is an enduro style tyre 120/80 x 18
Other markings are 62S and K60. I think it is roughly a 400/425 x 18.
I think it fits bikes like YAM XT 250, DT 250, SUZUKI DR 400, SP370 AND HONDA XL125. GOT TO BE A BARGAIN AT THIS PRICE. Clearing out the shed of my old bike stuff