Celtics City Floor Edition Id?

Hello
Can someone told me pls whats the Id of Floor City Edition of the Celtics ?
And from which file i can extract it?
Thx ! ! !

There is no f005_alt.iff
I looked in all the files.

Celtics never had a alternate floor..

The Celtics don't have a city edition floor. You can see in this highlight video that they are wearing their city jerseys, but the court is the same:

The Celtics don't have a city edition floor. You can see in this highlight video that they are wearing their city jerseys, but the court is the same:

At 7 December 2018 i tried the play now mode and i choosed the jersey city of Celtics. An i got this Different floor. i tried many times and i always got that floor. But the next day i got the normal Celtics Floor.
Thats Why i asked

https://imgur.com/AsNpKCL

thats a Myteam 1960's Celtics court