Master of Reality is the third studio album by Black Sabbath, released in the United Kingdom by Vertigo on 6 August 1971.
The first pressings came with a poster featuring a photo of the band, taken by Keef (not depicted here). The album’s title is shown embossed, with the black-on-black lettering only visible in relief. Later editions would drop the costly embossing in favor of the album title printed in gray – as well as in many other colorways.
The letterforms were distorted to resemble a fluttering flag. They are taken from Lodwick Kabel, a weight extension of Rudolf Koch’s Kabel that’s bolder than Kabel Black (1929) and also ITC Kabel Ultra (1975). London-based typesetting studio Photoscript showed it as “Exclusive Royalty face” in their 1970 catalog. See the Blog post for more details.
[More info on Discogs]