Glass positive:- Large eruptive prominence, J. Evershed,...
Glass positive:- Large eruptive prominence, J. Evershed, Sri
Glass positive:- Large eruptive prominence, J. Evershed, Srinagar, Kashmir, 1916, May 26d 8h 51m, prism-spectroheliograph fed by 15- inch lens, focal length, 15ft, 10"x8"