FIG 23 depicts the use of {HEAD ~ movable safety barrier system} 70 on one side of the roof 15 or {TAIL ~ peak} of a building 24 
FIG 23 depicts the use of { HEAD ~ movable safety barrier system } 70 on one side of the roof 15 or { TAIL ~ peak } of a building 24
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH