| T.M. Reger (Philadelphia) Backmark for "T.M. Reger, Photographer, 915 Arch St., Philadelphia" n.d. Carte de visite, back Private collection of Christopher H. Jordan LL/96579 (Alan Griffiths, 12 March 2021) Possibly the same Reger in Altoona, PA, US who took stereoviews.
| |