David Chalmers "All Night Long" 1977 US Private Prog Loner Folk
According to Chalmers, between 50 and 100 copies of the third LP "All Night Long" were pressed for promotional purposes. Chalmers apparently still owns numerous copies, occasionally putting one up for sale on eBay where they routinely rake in between $200 - $300. I've never heard it, but based on a series of on-line review I've read it apparently sounds similar to the second half of "Primeval Road" - meaning singer/songwriter fair.