In addition to the pics provided by Marcus, I've seen a 1.35 I cut with the T, F, RMC and Ordnance bomb marking in the sling well. Circle P on the wrist, Large UEF over GHD in a box, no cartouche.
Never really thought about it, but the box was pretty thin. That marking is something one never forgets, if you know what I mean. Barrel date was 11-42, I think, but it did have the large P barrel proof.
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