Contemporary Abstract Modern Signature Pop Art Lithograph

A fine example of modernist abstract lithograph boldly and loudly pop art, is signed by artist, in calligraphy & monogram style. The presumed title  verso " twelve", and is printed on the sticker, with possible production numbers. Abstract geometric circular pop art design in red,  indigo and black. excellent condition. secured under glass , adorned in contemporary gilt decorated black wood frame. the colors are good looking and the yellow mat contrasts with black original period frame. On the reverse, the sticker printed Twelve 518-166,  hand written inscription on the very end .  suggested Presumably a "Japanese Art " . Inscriptions highlighted on the images. 

Frame: 36.5" x 30.5" approx.  mat: 5" d. art: 23.5" x 20.5".