In the 25FB, 27FB, 28 and 30 models, there is a collapsing slide out door in a niche behind the toilet. It shows as a small wavy line. There is also one beside the galley in some models so there is privacy for a shower.
Note that Colonial Airstream web site has a link to download the 2014 Airstream catalog.
WBCCI Life Member 5123, AIR 70341, 4CU, WD9EMC
TV - 2012 Dodge 2500 4x4 Cummins HO, automatic, Centramatics, Kelderman level ride airbag suspension, bed shell
2014 31' Classic model 30 twin beds, 50 amp service, 900 watt solar system, Centramatics, Dill TPMS, disc brakes, 16" tires & wheels