The Horn Book, Volume XX, Number 3 (May-June special Twentieth Anniversary Number). Boston, 1944. Illustrated (includes a frontispiece of Beatrix Potter with Alison Hart). 8vo, original pictorial cream wrappers. Rare." /> POTTER, BEATRIX. "Wag-by-Wall." In: <I>The Horn Book,</I> Volume XX, Number 3 (May-June special Twentieth Anniversary Number). Boston, 1944. Illustrated (includes a frontispiece of Beatrix Potter with Alison Hart). <I>8vo, original pictorial cream wrappers.</I> Rare. | Christie's