Duhem & Bro., n.d., Back of carte de visite for C. Duhem & Bro., Photographic Artists, Larimer St., Denver, Colorado., Carte de visite, back, detail, Private collection of Alan Griffiths, LL/36575
Duhem & Bro. n.d. Back of carte de visite for C. Duhem & Bro., Photographic Artists, Larimer St., Denver, Colorado.
