Master of Reality font here refers to the font used in the cover artwork of Master of Reality, which is the third album by the British metal band Black Sabbath, released in 1971 on Vertigo Records.
The album title as well as the band name on the cover was probably designed based on ITC Kabel Ultra, originally designed by Rudolf Koch in 1975 and then redrawn by the International Typeface Corporation. The font is a commercial one and you may view more details about it here.
Download Kabel Font
The Kabel font identified above is not available for free, please follow the link above and purchase the font. Meanwhile, you can take a look at our collection of fonts for cars, pop music and apparel as well as round-ups of new & fresh fonts around the web.