"Median metal bows?" ... I dunno about the Medeans' bows

I thought so too, Kiwi, and not seeing your post I was about to make your same point. But upon LIU I found to my surprise that Max is correct (I should have known!). The ancient county in question was Media, for which the adjectival form is Median; the later (as well as the more familiar Mede) also being a noun form.
http://www.bartleby.com/61/84/M0188400.html