In numerous spots around our trailer there is evidence of change. Stray holes here & there, paint "shadows", & widely varied build quality. An obvious example sits on the closet door:
Its pretty obvious that the current "pinch catch" has not always held that door closed. Several years ago while surfing "The Ebay" I ran across these:
The holes line up EXACTLY & the use if this sort of hardware is confirmed in photos at Vintage Airstream.com: Cruisette 8021
One bid and a couple bucks later they were mine. Even better, I can now re-use the pinch catch to reconstruct the under-bed compartment door.