Unless these tracks were from the 1961 recordings for the LP box set The Nat King Cole Story, SWCL-1613, none of these recordings have Ralph Carmichael conducting the orchestra... See the listing for H-357 "Unforgettable" 10 inch LP for the particulars.
Ok... The original mono non Star Line LP version was available from 1954 through 1962 with the various Capitol labels the company used between those years. In '62, with the advent of this Duophonic version, the mono LP was also given the Star Line moniker, even though the LP itself wasn't changed at all... Even kept the old T-357 catalog number. Since the cat # is the same as the original "Unforgettable" LP, it is my belief that it should be counted as a repress of the original mono LP.
I have the mono version of Capital The Star Line (T-357). It has 12 songs on it, but no date. Would it have been pressed prior to the stereo versions, or at a similar time?
I have also a 3d version with only 10 tracks. I also has DT-357 on label with another # R 132474. It is listed with Starline DT-8-0357 (Unforgetable) because the tracks are the same as that one.
apparently they made both, because I have a Starline the looks just like it but Cat # is DT-8-0357 and it only has 10 tracks. I notice too, that this copy say "For Stereo Phonographs" but doesn't actually say Stereo. I have both and the other one actually says "Stereo" on it.