20

 

plate plate plate slate slate

plate plate slate slate slate

plate plate plate slate slate

plate plate slate slate slate

plate plate plate slate slate

plate slate hoist plate slate

plate slate hoist plate slate

plate slate hoist plate slate

plate slate hoist plate slate

plate slate hoist plate slate

slate plate hoist slate plate

slate plate hoist slate plate

slate plate hoist slate plate

slate plate hoist slate plate

slate plate hoist slate plate

slate slate slate plate plate

slate slate plate plate plate

slate slate slate plate plate

slate slate plate plate plate

slate slate slate plate plate