 |
| |||
| scotch; scorza block | |||
| derailer; derailing stop | |||
| movable scotch block (makhno); movable scotch block (makhno); scotch block (makhno) | |||
|
| |||
| scotch; scorza block | |||
| derailer; derailing stop | |||
| movable scotch block (makhno); movable scotch block (makhno); scotch block (makhno) | |||