I believe the Floyd holds on to their own sound effects. Various wind sound effects have been used on several albums. Gilmour said something about unearthing old sound effects in an interview. Alan Parsons made mention to having many extra sound files available that were never used.

So, yeah, i'd bet that's the same bells.

The really strange effects (to me) are the "Small Furry Species" from UmmaGumma showing up in Embryo and some of the Echoes guitar effects showing up on The Wall.