b&w photograph
Good, three holes punched in matting.
Solar eclipse, featuring sunspots.
From Burke-Gaffney fonds: astronomy. Written on reverse: '1947 May 20 Brazil 1947 May: Max Sunspots (there were more sunspot groups reported in 1947 than in any year since 1778) S253'.
Date Catalogued: 2/19/1998