IPMS/USA Chapter in St. Louis, Missouri. Founded in 1975, it received its IPMS/USA charter in 1976. IPMS/Gateway meets on the third Tuesday night of the month at 7:00 pm at Affton Elks Lodge 2635, 6330 Heege Rd., St. Louis, MO 63123. https://sites.google.com/view/ipmsgatewaychapter/home