black and white stereograph mounted on yellow cardstock; printed on verso "Photographed and Published by / Kilburn Brothers, ---- Littleton, N.H."; printed on recto "No. 617 Spinning Room, Mechanics Mill"; interior of factor with spools of thread stacked in foreground and machines to spin thread filling room in mid-to-background; Mechanics Mill was located at 1082 Davol Street, Fall River, Massachusetts