: Fl ora ▁of ▁Pan ama ▁Category : Pl ants ▁described ▁in ▁ 1 8 3 0 ▁Category : Fl ora ▁of ▁South ▁America <0x0A> </s> ▁St ro de ' s ▁Mill , ▁also ▁known ▁as ▁Et ter ' s ▁Mill , ▁is ▁a ▁historic ▁gr ist ▁mill ▁located ▁in ▁East ▁Brad ford ▁Township , ▁Ch ester ▁County , ▁Pennsylvania . ▁It ▁was ▁built ▁in ▁ 1 7 2 1 , ▁and ▁is ▁a ▁ 3 ▁ 1 / 2 - story , ▁bank ed ▁field stone ▁structure . ▁ ▁It ▁measures ▁approximately ▁ 3 0 ▁feet ▁by ▁ 5 8 ▁feet . ▁ ▁The ▁building ▁houses ▁a ▁private ▁residence . ▁ ▁It ▁was ▁added ▁to ▁the ▁National ▁Register ▁of ▁Historic ▁Places ▁in ▁ 1 9 7 1 . ▁ ▁It ▁is ▁located ▁in ▁the ▁St ro de ' s ▁Mill ▁Historic ▁District . ▁ ▁References ▁ ▁External ▁links ▁ ▁St ro de ' s ▁Gr ist ▁Mill , ▁L ena pe ▁& ▁B irmingham ▁Ro ads ▁( E ast ▁Brad ford ▁Township ), ▁S conn ellt own , ▁Ch ester ▁County , ▁PA : ▁ 2 ▁photos , ▁ 5 ▁data ▁pages , ▁and ▁ 1 ▁photo ▁ca ption ▁page ▁at ▁Historic ▁American ▁Build ings ▁Survey ▁ ▁Category : Gr inding ▁mill s ▁on ▁the ▁National ▁Register ▁of ▁Historic ▁Places ▁in ▁Pennsylvania ▁Category : Ind ust rial ▁buildings ▁completed ▁in ▁ 1 7 2 1 ▁Category : Gr inding ▁mill s ▁in ▁Ch ester ▁County , ▁Pennsylvania ▁Category : H istor ic