Mazin, R. & Co. Letters to Gaster from R. Mazin & Co., booksellers, publishers, printers and bookbinders. Subjects include asking Gaster to send some books to their address; asking Gaster where to obtain a copy of his work "Jewish Sources of & Parallels to King Arthur"; asking for a list of all the books which Gaster has published, with their prices and the names of the publishers, for the preparation of Mazin's catalogue. 1921-1925