Hi Dani....the only things I took with me to the oath ceremony was my green card and the oath letter.
The Immigration officers first looked at the letter when I was in line outside the theatre and also checked the back of the letter. Once we were inside the theatre, the IO took the green card from me. They also asked if you have a re-entry permit, to hand it in to them as well.
To Futurecitizen....
The guy in front of me in line outside the theatre had gone out of the country (for the time between the interview and oath dates) and he mentioned it to the IO and the only thing the IO asked him was how long he was out of the country. I think he mentioned 2 weeks or something like that and the IO marked the back of the oath letter with the info mentioned. I didn't see the IO ask for passport or anything.
I think if you go out of the country, it might be a good idea to bring your passport just in case the IO asks for it.
Hope this helps
The Immigration officers first looked at the letter when I was in line outside the theatre and also checked the back of the letter. Once we were inside the theatre, the IO took the green card from me. They also asked if you have a re-entry permit, to hand it in to them as well.
To Futurecitizen....
The guy in front of me in line outside the theatre had gone out of the country (for the time between the interview and oath dates) and he mentioned it to the IO and the only thing the IO asked him was how long he was out of the country. I think he mentioned 2 weeks or something like that and the IO marked the back of the oath letter with the info mentioned. I didn't see the IO ask for passport or anything.
I think if you go out of the country, it might be a good idea to bring your passport just in case the IO asks for it.
Hope this helps