I just got the 08 Williams catalog and see the 072 track. Is this track 027 or O gauge profile?
It’s the standard O profile. Not the O-27.
I wish someone would make 027 profile 72" curve track again like K-Line did.
If you are looking for K-Line’s 027 track in 72 inch radius, you should try either ebay or www.choochooauctions.com
Williams as far as I know makes O gauge style track. Gargraves track is very close to 027 in heigth and comes in many curve sizes & might work for what you want.
Lee F.