it appears to be a gretsch 6128 duojet.
Crowded
The comparative form of "crowded" is "more crowded."
Yes. "Crowded" can be a verb (as in "People crowded the stadium") or an adjective. (as in "The stadium was crowded because of all the people.")
Its VERY crowded
Yes. Very crowded.
The room is crowded.
Diffusion
That is the correct spelling of crowded (congested, cramped).
Is coach too crowded
Crowded Paradise was created in 1956.
Crowded was created on 2006-02-20.