Hello,

i think the scope is original. All the repro-scopes i´ve seen are coded with dow ( Opticotechna Prerau).
Your ddx ( Voigtländer Braunschweig) is for use in cold climate. The blue triangle means that the scope is filled with cold-resistance lube.
i´ve the same scope with serial 65xxx. Nice part....., and works fine...
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