A solar eclipse observed at several places on the Earth provides a possibility to study fast changes in individual structures of the solar corona. The structure and possible changes of the streamer brightness, which had its base near the Moon's limb at P.A. 29 - 129 degrees as observed during the November 3, 1994 eclipse in Chile (lambda = 69 dg 33 min 55 sec and ph -18 dg 11 min 37 sec) and in Brazil (lambda = 52 dg 39 min 37 sec and phi = -27 dg 05 min 39 sec) are compared. Although the time difference between the two observations was only 28 minutes, it shows, that changes in the studied streamer occurred but was not very significant. This was our first attempt to treat a long helmet streamer in such a way. We will continue the attempt of studying long helmet streamers from the Siberian eclipse on March 9, 1997. Than we will be able to compare obtained structures with data obtained by the SOHO satellite.