11src: https://digitalarchive.tpl.ca/internal/media/dispatcher/2228392/fullCanadian copyright notification for "Dumbell rag" by Ivor E. Ayre1920Ritchie, P. E.PMS-AR58-ENV7-0017731803382640src: https://digitalarchive.tpl.ca/internal/media/dispatcher/2228432/fullDumbell rag1979Ayre, Ivor E.CSM-AYRDUM1979-0017731791382627src: https://digitalarchive.tpl.ca/internal/media/dispatcher/2228436/fullThe Dumbell ragapproximately 1920Ayre, Ivor E.PMS-AR58-ENV10-0017731808382645src: https://digitalarchive.tpl.ca/internal/media/dispatcher/2228475/fullThe Dumbell ragapproximately 1920Ayre, Ivor E.PMS-AR58-ENV10-0027731841382691src: https://digitalarchive.tpl.ca/internal/media/dispatcher/2228481/fullDumbell ragbetween 1920 and 1970Ayre, Ivor E.PMS-AR58-ENV10-0047731852382705src: https://digitalarchive.tpl.ca/internal/media/dispatcher/2232200/fullThe Dumbellsbetween 1917 and 1918Dumbells (Musical group)PMS-AR58-ENV20-0037733320384724src: https://digitalarchive.tpl.ca/internal/media/dispatcher/2217705/fullThe Dumbells at the Grand Theatre (Calgary)1920Rosettis, JoePMS-AR58-ENV31a-0017728299378623src: https://digitalarchive.tpl.ca/internal/media/dispatcher/2232203/fullThe Dumbells (Coliseum (London, England))1918Dumbells (Musical group)PMS-AR58-ENV22-0037733326384733src: https://digitalarchive.tpl.ca/internal/media/dispatcher/2232196/fullIvor "Jack" Ayre1976Dumbells (Musical group)PMS-AR58-ENV18a-0047733323384730src: https://digitalarchive.tpl.ca/internal/media/dispatcher/2232198/fullIvor "Jack" Ayre and showgirlbetween 1950 and 1960Dumbells (Musical group)PMS-AR58-ENV18a-0057733324384731src: https://digitalarchive.tpl.ca/internal/media/dispatcher/2218120/fullIvor (Jack) Ayre's script for an episode of Camera Canada, "The Dumbells ... With Affection"1965Ayre, Ivor E.PMS-AR58-ENV06-0017728431378758