Bill,
I am fairly certain that Henry has no other change of clothes. I have never seen him wear anything else. Even at the local train show in February he was wearing the same stuff he wears working at the zoo. I think the Austrian got new tanks around 1994? Id have to check with Larry Kopiasz hes our tank engine historian. I live in Lincoln and commute to Omaha to work at the zoo. I'm usually up once a week usually on Sunday. Stop on by the engine house sometime. Look for me I'm usually the youngest guy running and I wear a bowler hat. I tend to stand out among the veterans, which I guess I am now? LOL. 6 years later and every day there is always different.