November, December - same diff when I haven't slept very well! Anyway, I don't think we could use November 1960 as release date, if the date on the back of the cover here is September 1959, and I would be hesitant to use that in the absence of any corroborating information.
Made in Germany in the dead wax. The date code is B 7, and between the B and the 7 is in a lower groove a fallen back letter L. So I presume it's date is Februari 1957.
Phil, here we have twelve months in a year, so 1160 is November 1960 ;).
Is it possible to use this date as a release date?
The only thing I could suggest, this being a German issue... is to ask keebrev to look in the deadwax, as those lovely Germans usually stamp a date there in the run out grooves.
Hard to get an accurate date for this - Discogs shows the date as 1962 for both the German and Spanish releases with the same number (the German, actually copied from the Spanish entry, apparently has an "1160" code on the back cover, suggesting December 1960), and there is no US Decca EP equivalent, with at least one of the recordings coming from a 1952 LP! Any DG experts here?