Pieter Zeeman AutographAutograph letter signed, 3 1 2 pages (on two conjoined sheets both sides), 5,5 x 8,5 inch, `Prof. Dr. P. Zeeman` letterhead, Amsterdam, 30. 04. 1933, to Samuel A. Goudsmit thanking the recipient for sending a copy of his book on Atomic Energy States, written and signed in dark ink "P. Zeeman", with a horizontal letter fold and pinholes to the upper left corner in fine to very fine condition. In parts (translated): "[] The book will be very useful. It