P. L. Travers did not like to sign her books, but she was very protective of her characters. We have 3 copies that she DID sign. One is the reprint of MARY POPPINS published by Harcourt, Brace and World in 1965 to coincide with the release of the Disney movie. The book and dust jacket are in fine condition, and the signature appears on the title page. 
The other copies are in a slipcased set of books published by Reynal & Hitchcock in October, 1936. MARY POPPINS is the ninth printing of the first edition, and it is signed on the front free endpaper. There is no dust jacket, but the blue cloth covers are in very good condition. The other book in the set is MARY POPPINS COMES BACK, and it is the third printing of the first edition, signed by P. L. Travers on the front free endpaper. This book has a very good original dust jacket. The slipcase for the books has decorative paper covers and is in very good condition.
Please let us know if you would like to own these scarce signed copies.