A stereo mix of the "Can You Please Crawl Out Your Window?" single has long circulated among collectors, taken from a Columbia acetate cut in Nashville; but this mix was probably made rather later than the original mono single. The track was apparently considered for inclusion in Greatest Hits Vol.II (1971)*, and may even have been in the running for the first Greatest Hits album in 1967; either of these would have called for a stereo version. This wide, 1960s-style stereo mix has never had an official release; but a new, much narrower stereo mix was made for the 18-CD Collector's Edition of The Cutting Edge 1965-1966, released in 2015. For further details and discussion, see this article.
* See Clinton Heylin's Revolution In The Air, p.511