Hello Ryan, up to now I have not seen a mixture of nickle silver and aluminum chains/chain oarts on first pattern Luft daggers which looked doubtless period done. In my opinion it might happen (for what reason ever) that an earlier dagger has a later aluminum chain but no mixture within the chain itself.
BUT we have to keep in mind that during the state of production a new (surplus) nickle silver chain part did look nearly identically to a new aluminum chain part so it MIGHT have happened that a worker did not check carefully and did put togethere such "improper" parts. What do we know.... BUT the question is also if you would like to have such a dagger with all it´s doubts in your collection.
Regards,

wotan, gd.c-b#105

"Never look for sqare eggs" as a late owner of an original FHH-dagger used to say.