Here is a first Penguin edition of The Penguin Book 1264 - Robert Browning - A Portrait by Betty Miller, 1958, 304 pages unravelling the literary puzzle of the 19th century - the life of Browning, all in good condition.  I have hundreds of first Penguin editions for sale at my Kongwak store in South Gippsland which is open every Sunday- keep watching for further listings.