Original
Rev. Father Galliano - Tortures and Torments of the Christian Martyrs From the “De SS. Martyrum Cruciatibus” - Fastened to a wheel, which is revolved over iron spikes.
A. Martyr whose limbs are interwoven in the spokes of a wheel, on which he is left exposed for days, till he dies.
B. Martyr bound to a narrow wheel, which is revolved, so that his body is horribly mangled on iron spikes fixed underneath.