AB phosphor /w WBR.
likely 1st flame 2B (9.5mm) AB 28.7.95 DP192B ...
This is a wide band stamp and so is not listed on my CD. Please see the difference between a broad band and a wide band in the Glossary. It is caused by a misregistration of the phosphor and colour cylinders producing a phosphor shift but not one that results in a listable variety, it is still a 2-bar stamp each of which is the full length.
Best regards, Douglas Myall