
Father Kavanagh [left] Ready. Photo by Marsh.
Further info from a newspaper photo caption in J.E. Maybee's scrapbook [4] (p.17):
REV. I.J. KAVANAGH, S.J., AND HIS UNIQUE DEVICE FOR EXAMINATION OF THE OUTER CORONA AND STREAMERS.
The telescope itself is merely an accessory. The framework attached thereto bore at one end a disc of such size as to block out the dazzling light of the inner corona, and facilitate visual examination, through the eye-piece, of the outer corona and streamers.
Links:
[1] http://www.rasc.ca/category/archivetags/1905
[2] http://www.rasc.ca/category/archivetags/jjkavanagh
[3] http://www.rasc.ca/category/image-galleries/national-archives/archives-1905-solar-eclipse
[4] http://www.rasc.ca/scrapbook-1905