Boeing 737-200 (N20SW)

Such pretty little aircraft!

Kmart?

It's not; it's the second N20SW that they owned.

1st 3 SW 737-200 jets were N20SW, N21SW and N22SW tail numbers

Their first plane, N20SW was built for Pacific Southwest Airways (PSA), who had to turn down acceptance of the plane because of financial trouble at the time.
Flashback: When Southwest Retired the Boeing 737-200 ...

Thank you all for the comments - I was really unsure based on what I read on different data pages.

N20SW
Boeing 737-2H4(Adv) - 21337, operated by Southwest Airlines
MANUFACTURE DATE
1977-05-06
Age: 44 years 3 months

LAST SEEN ON FLIGHTRADAR24
Flight History: N20SW

AIRCRAFT INFO
CN/MSN: 21337
LINE No: 490
Registration: N20SW
Airline: Southwest Airlines
Delivery Date: 1977-05-16
Engine Model: JT8D-9A
F/N:
SELCAL:
R:
Status: Str
Comments:
REGISTRATION HISTORY
N20SW Southwest Airlines 1977-05-16
MORE PHOTOS OF BOEING 737-2H4(ADV) - 21337
Registration Delivery date Airline Remark
N20SW 16/05/1977 Southwest Airlines Scrapped In 2005 Correct

This plane was delivered in 1977 and has been scrapped. SW had ad "Pajama Party for the last flight of their 737-200s and I missed that flight by one day.

Thanks Frank I never saw that Ad!

The polished aluminum nacelles were pretty "standard" in the early 737 introductions. I got the impression Boeing encouraged it. My outsider assumptions were either the Boeing paint shop had issues with the confined area between wing and ground, or they just wanted the engines to stand out so folks would think, "Aww, how cute a baby 707!". ;} joking aside I do not recall a 737 with painted 737 engine nacelles until well into the 400 series.

One of these old Southwest 737-200's was turned into a restaurant back in 2005, called the "Parachute Inn". Located in Walnut Ridge, Arkansas. The restaurant is no longer open but the aircraft remains on site.