The Pundit Files (IX - Invisible College: The 1930s Campaign)

From publisher blurb:

The Invisible College 1930s Campaign is a complete field guide to running the Invisible College OSR RPG in the 1930s era, detailing the situations of the different major occult groups and their areas of control in the years before the 2nd World War. Along with guidelines and new material to modify campaigns to the 1930s era, a complete timeline of campaign period covering real historical events, occult group activities, and weird phenomena of the period, details on the terrible tepaphone, and brief guidelines on traveling in the period… this is the largest Pundit Files yet at 24 pages.