When (if ever) did Airstream Travel Trailers first use egress windows?
I know that in the 1970's mobile homes were required to have such escape windows in the bedrooms.
Seems that the same law would have applied to the RV world. But apparently not.
Egress windows at one time had red painted mechanisms that either removed the sash completely or allowed it to swing open enough for the exit of an adult.
BTW I can't decide whether window questions are interior or exterior related , but egress must I presume happen from within...hence my placement on the interior forum.