▁at ▁the ▁time ▁the ▁arch ae ologist ▁for ▁the ▁District ▁of ▁Os nab r ück , ▁where ▁he ▁should ▁look . ▁He ▁was ▁ad vised ▁to ▁search ▁ 2 0   km ▁north ▁of ▁the ▁city , ▁where ▁Roman ▁co ins ▁had ▁previously ▁been ▁found , ▁though ▁none ▁for ▁ 1 8 ▁years . ▁ ▁Schl ü ter ' s ▁recommendation ▁was ▁based ▁upon ▁a ▁study ▁of ▁maps ▁and ▁the ▁ 1 9 th - century ▁historian ▁The odor ▁M om ms en ' s ▁proposal ▁that ▁the ▁K alk ri ese ▁area ▁was ▁a ▁likely ▁location ▁of ▁the ▁battle ▁which ▁took ▁place ▁in ▁ 9 ▁C . E . ▁On ▁his ▁first ▁day , ▁Cl unn ▁found ▁several ▁co ins ▁from ▁the ▁reign ▁of ▁August us , ▁mostly ▁in ▁excellent ▁condition . ▁No ▁co ins ▁found ▁at ▁the ▁site ▁post - date ▁ 9 ▁C . E . ▁He ▁also ▁discovered ▁Roman ▁s ling ▁shot ▁in ▁the ▁vic inity ▁of ▁K alk ri ese , ▁the ▁first ▁ind is put able ▁evidence ▁of ▁military ▁activity ▁there . ▁Pre viously ▁there ▁had ▁been ▁many ▁conflic ting ▁theories ▁about ▁the ▁location ▁of ▁the ▁battle , ▁and ▁sch ol ars ▁had ▁searched ▁for ▁it ▁without ▁success ▁for ▁ 6 0 0 ▁years . ▁ ▁On ▁the ▁basis ▁of ▁Cl unn ' s ▁find ings , ▁Schl ü ter ▁began ▁a ▁compreh ensive ▁exc av ation ▁of ▁the ▁site ▁in ▁ 1 9 8 9 , ▁later ▁directed ▁by ▁Sus anne ▁Wil bers - R ost