As a fan of CB&Q Chinese red, I'm searching for surviving ex CB&Q GP-20's w/ the original factory low nose. Not finding many.
Most Q survivors had their cabs and noses rebuilt so now they look like CF7's (Ugh!!!).
There do seem to be a number of ex ATSF examples still with us, though, that have original cabs and nose.
Example of CB&Q GP20 as delivered:
One ex-Q survivor:
Pioneer Rail (PREX) 2057. Ex CB&Q 921.
The sloped nose and curved roof give the original GP20's a Snoopy look. I've always like 'em.
Maybe a surviving CB&Q example will be preserved some day?