I'm getting a bit punch-drunk with photos of Mephisto lately, but I can't remember discussing this particular detail before.
In this stereopticon, there's the front horn of a Mk IV on the extreme right of each image. The two images are of different quality, so you have to juggle them a bit, but I think you can make out a number. If you magnify it by various means, you can see what might be a tarpaulin or something partly obscuring the number 57, 87, 97, or B7. I have no idea what it might signify, but maybe Gwyn or someone equally knowledgeable can draw some conclusions.
-- Edited by James H on Thursday 14th of September 2017 07:06:09 PM
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