Perry, Otto, 1894-1970, Denver Tramway trolley car, number 815, type ELECTRIC and number 310, type ELECTRIC and number 321, type ELECTRIC and number 301, type ELECTRIC and number 333, type ELECTRIC and number 318, type ELECTRIC (1950). Denver Public Library Digital Collections, accessed 05/03/2026, https://digital.denverlibrary.org/nodes/view/1103823



