Wilhelm König ya kasance mataimakin a National Museum of Iraq a cikin 1930s. Ya lura da abubuwa masu yawa na azurfa mai kyau daga tsohuwar Iraki, wanda aka rufe da ƙananan yadudduka na zinariya, kuma ya yi tsammani cewa an yi amfani da su. A 1938 ya rubuta takarda da ke ba da zaton cewa sun iya samar da wani galvanic cell, watakila ana amfani da su don electroplating zinariya a kan kayan azurfa. Wasu masu shakka sun ƙi wannan fassarar.Wasu sun gaskata cewa an yi amfani da ruwan inabi, ruwan 'ya'yan lemun tsami, ruwan' ya'yan inabi, ko vinegar a matsayin maganin electrolyte mai acid don samar da wutar lantarki daga bambancin tsakanin wutar lantarki na jan ƙarfe da ƙarfe. Tambaya: Wanene Wilhelm Konig?
mataimaki a Gidan Tarihi na Kasa na Iraki a cikin 1930s