дробления угля шли овки и точки росы
grist to the mill . The plates depicted measuring and drawing instruments, many later used to produce the original plans for the machines, as well as lathes, stone cutters, sawmills, horse carriages, barrels, dredges, pile drivers, grist mills, hauling machines, cranes, elevators, pumps, salvage machines, nautical propulsion machines, and many others.