OK, here are their carapaces–what typewriters live inside these shells❓
Hometown Business Machines’ tech Michael Ardito had a meet-up at Trophy Bikes with Brian Kruk of Typewriters 101–here are the machines Mr. A worked on; seemed like a good oppty for a Case Study! Will post the “contents” in a day or two; let us know yr best guesses.
phillytyper 
I can’t even guess on some, but I’ll say (from L to R):
Smith Corona Classic 12
Royal Quiet Deluxe
?
Royal Royalite
Underwood something?
?
?
l-r: Smith Corona Classic something-ish; Smith Corona Sterling-ish; no idea!; Olivetti-ish; Continental-ish; Remington Portable; Adler Tippa-ish.
Basically I don’t know but it’s fun.
Left to Right
Smith Corona Galaxie 12
Smith-Corona 5-series (Silent-Super, I think)
Wide-carriage Erika, Adler or Facit
Dutch-made Royal
Royal Model P
Remington Portable
Litton-era Tippa
’60s/’70s Smith-Corona, maybe a 12″ one
’50s Smith-Corona
Facit??
Royalite
Remington portable (#1/#2?)
Not sure, looks like a new handle
Adler Tippa (S?)