Joseph Pennell - Oil refining, Whiting, Indiana

Library has two impressions No. 729-1: [The horseshoe curve, Pennsylvania Railroad], [His Railroad series] Wuerth, 729. Edition of 50? Trial proof. Signed in pencil. Ex coll.: E. A. Ballard. Plate destroyed. (Source: Beall)

Place of creation based on Pennell's residence at the time of the print's creation.
American prints in the Library of Congress : a catalog of the collection / compiled by Karen F. Beall... Baltimore : John Hopkins Press, 1970, p. 361.
no. 729-1 Purchase; Pennell fund.
no. 729-2 Gift; Pennell Collection.