Great Britain born 1937
I say they are
Collection Title: the portfolio, 'The Blue Guitar', 1976-77, (No.16)
Place made: New York, New York, United States of America
Materials & Technique: prints, Intaglio Etching, aquatint printed in colour from 2 steel-faced copper plates. Support: White mould-made Inveresk paper.
Manufacturer's Mark: No manufacturers mark.
Edition: Edition of 200; 35 proofs
Publisher: Petersburg Press Ltd
Place Published: New York, USA.
Date Published: 1977