This is the first Avalon Hill bookcase edition; the only one with wooden blocks in two sizes to represent the armies and navies.
- 3-piece map (with purple border; Switzerland shaded in light grey)
- 4 plastic clips to keep the map pieces together
- wooden playing pieces
- first edition rules, copyright 1976.
Note that the 1981 and 1982 editions look the same as the 1976 one from the outside, including the copyright date on the box (1976).
(Description based on Simon Szykman's Diplomacy Boardgame Compendium and Gallery, http://web.archive.org/web/20060923214042/http://www.szykman.com/Diplomacy/US-AH.html)