Regulations for International Aerobatics Competition held in conjunction with the St. Louis Air Races. This 15pp, 8.5x11", stapled document has the cover description, then 3 pp of rules followed by 8pp of figures showing aerobatic routines, lastly there are three pages listing difficulty numbers for each routine. Included is a second stapled mimeo of 9pp with "Tentative Day-By-Day Schedule of Events"which, like the 1937 and 1939 Cleveland rules shows just one event "Feminine Record Trial, For-Women-Only". All very good condition.
