The following 757s been operated by Britannia
757-204 G-BYAC
757-204 G-BYAD
757-204 G-BYAE
757-204 G-BYAF
757-204 G-BYAG
757-204 G-BYAH
757-204 G-BYAI
757-28A G-BYAJ
757-28A G-BYAK
757-204 G-BYAL
757-2T7 G-BYAM ex Monarch
757-204 G-BYAN
757-204 G-BYAO
757-204 G-BYAP
757-204 G-BYAR
757-204 G-BYAS
757-204 G-BYAT
757-204 G-BYAU
757-204 G-BYAW
757-204 G-BYAX
757-204 G-BYAY
757-236 G-CDUO tfd from Britannia AB
757-236 G-CDUP tfd from Britannia AB
757-27B G-OAHF ex Air Holland
757-27B G-OAHI ex Air Holland
757-23A G-OAHK ex Air Holland
757-208 G-BTEJ ex Icelandair lsd
757-23A G-BXOL
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by https://www.flickr.com/photos/88573897@N03/, on Flickr
G-BTEJ seen at Luton during there open day
hope that is of use to some
mark