O / Ruscha
Ed Ruscha, Vowel #98 (O), 1996
Source: Tate Modern
Ed Ruscha, Ed Ruscha, Securing The Last Letter, 1964
Source: arttattler
Ed Ruscha, Vowel #18 (A), 1996
Source: MutualArt
Ed Ruscha, Mr. Ray
Source: Ikon Ltd
Ed Ruscha, Vowel #62 (a), 1996
Source: ArtNet