(Purple Cow) signed in black marker on the front (slightly faded), (Blue and Yellow Cow) signed, dated and numbered 134/150 in black ballpoint pen on the reverse, (Pink and Yellow Cow) from the 1989 printing for the Museum of Modern Art exhibit, Andy Warhol: A Retrospective and published by The Estate and Foundation of Andy Warhol, all from unknown edition sizes, three published by Factory Additions, New York, all framed