Calibrated intensity and spatial scales, and H-alpha disk image inserted in occulting disk region. Note that the solar active region producing the green line emission is not yet visible on the solar disk. Tim Henry digitized some frames, and a movie sequence is available below.
Mercury moves from the lower right to the center of the frame.
Dust streaks and specks have not been removed from the digitized film images. The movie is a 57 kbyte mpeg file. 3 millionths per pixel.