(Photograph courtesy of Ron Cappel.)

Label for P.E. music roll No. 62 (Tanzrolle), a four-tune dance roll. The music roll label is pasted onto the special music roll leader for operation with an automatic roll changer. The notation at the bottom of the label translates to: “Sheet music should be kept dry.”

(Photograph courtesy of Ron Cappel.)

P.E. music roll No. 62 (Tanzrolle), a four-tune dance roll. The Philipps stamp (in purple ink) at the beginning of the perforations reads: “Philipps; Aktien - Gesellschaft' Frankfurt, A.M.-West.” The several perforations that proceed the musical note perforations are register control functions.

(Photograph courtesy of Ron Cappel.)

Label for P.E. music roll No. 66 (Tanzrolle), a four-tune dance roll. The music roll label is pasted onto the special music roll leader for operation with an automatic roll changer. The notation at the bottom of the label translates to: “Sheet music should be kept dry.”

(Photograph courtesy of Ron Cappel.)

P.E. music roll No. 66 (Tanzrolle), a four-tune dance roll. The Philipps stamp (in purple ink) at the beginning of the perforations reads: “Philipps; Aktien - Gesellschaft' Frankfurt, A.M.-West.” The several perforations that proceed the musical note perforations are register control functions.

(Photograph courtesy of Ron Cappel.)

Label for P.E. music roll No. 77 (Tanzrolle), a three-tune dance roll. The music roll label is pasted onto the special music roll leader for operation with an automatic roll changer. The notation at the bottom of the label translates to: “Sheet music should be kept dry.”

(Photograph courtesy of Ron Cappel.)

P.E. music roll No. 77 (Tanzrolle), a three tune dance roll. The Philipps stamp (in purple ink) at the beginning of the music roll reads: “Philipps & Söhne; Frankfurt a. M. -West.”

(Photograph courtesy of Ron Cappel.)

Label for P.E. music roll No. 109 (Tanzrolle), a four-tune dance roll. The music roll label is pasted onto the special music roll leader for operation with an automatic roll changer. The notation at the bottom of the label translates to: “Sheet music should be kept dry.”

(Photograph courtesy of Ron Cappel.)

P.E. music roll No. 109 (Tanzrolle), a four-tune dance roll. The Philipps stamp (in purple ink) at the beginning of the perforations reads: “Philipps; Aktien - Gesellschaft' Frankfurt, A.M.-West.” The several perforations that proceed the musical note perforations are register control functions.