I have an early c.1915-1918 Charlie Chaplin long daybill poster titled "His Day Out". Printer is Renwick Pride.
There is no record of a Charlie Chaplin film of this title but movies for the international release were often retitled so it could well be for a film that was renamed for the Australian release. One possibility is that it could be for "By the Sea" (1915) which was also known as "Charlies Day Out".
Another theory is that it could have been used for the Billy West film "His Day Out" in 1918 as a sort of toungue in cheek send up. Billy West was a Charlie Chaplin impersonator. If this is indeed the case it would have been a clever promotion but Charlie Chaplin was not averse to litigation and I doubt he would have condoned the use of his name and image to promote an imposter's film. Note the words "Charlie Chaplin in his farcical new comedy".
If anyone has more information on this I would appreciate it.
(My "moviemem" logo is on the image but obviously not on the actual poster)