I have seen your dym 1437 several times on the web. When I saw it first about 2 years ago, both lubricant markings were not coloured. Sorry to say the colours are not original, though the scope itself is a nice one.
Ken
the scope is a nice one and it did come from e bay a few weeks back i thought it will make a good xmas present for myself as i have missed several in the last seconds of the auction as to the red and blue markings they only showed up after cleaning the scope
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