The Inspector wrote:
They are/were the prototypical pattern for every low buck, skin of their teeth, 'can we pay you next week?' midnight mail haulers.
I remember one week we ended up with 3 Methow 18's on the ramp here at Felts (Spokane). I asked the pilot of the 4th Methow Beech that showed up what the deal was. He told me our friendly FSDO here kept grounding every airplane they sent! The first got grounded, so they sent a second to fly that run till they could get #1 going again, then #2 got grounded so they sent #3 and so on. I got a pretty good laugh out of that. All those years and I never got any pic's of 'em here...