1601 - Staircase & exit keep clear
1602 - This door to be locked
1603 - Gangway keep clear
1604 - Keep clear exit/escape route
1605 - Fire escape keep clear
1606 - Fire exit keep clear
1607 - Staircase keep clear
1608 - This door must be kept closed
1609 - Keep locked shut
1610 - Fire door keep shut
1611 - Close doors at night
1612 - Close door at night
1613 - Fire notice/area keep clear
1614 - Kept unlocked/working hours
