The summit log on the rarely climbed Nevado de los Piuquenes is still the one brought up by the first ascensionist in February 1933 (left entry) and by the party that made the first ascent from the Chilean side in 1954 (3rd ascent overall).
A newer summit log can be found on the summit as well, but it has hardly any entries in it.
Photo taken by me in December 2005.