Eadweard Muybridge Heaving a 20-lb rock 1872-1885 / printed 1887 Collotype 8 1/8 x 13 1/8 in. image on18 1/2 x 23 1/2 in. sheet Plate 313 Inquire about this work Share On Facebook Twitter Email Eadweard Muybridge Heaving a 20-lb rock, 1872-1885 / printed 1887 Collotype 8 1/8 x 13 1/8 in. image on18 1/2 x 23 1/2 in. sheet