This Mount & Base is NOT Original , 99% Sure it is one of Robert Spielauer`s Reproduction LSR Mount & Base .
https://www.ebay.com/itm/GERMAN-WWI...=2&_sacat=0&_nkw=german+scope&_from=R40&rt=nc
https://www.ebay.com/itm/GERMAN-WWI...=2&_sacat=0&_nkw=german+scope&_from=R40&rt=nc