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I think there are at least two different cabin interiors for the A320 fleet. At leaf in First Class they are different, one has IFE in the armrest, the other not, plus a couple of other details around the seat.

Can anyone tell me which aircraft has which cabin interior (which registration numbers)? Some of QR's A320s are older, reg numbers A7-ADx, built in the previous decade. I assume they are the ones without IFE?

Thanks for any insight you can share.