The largest annual RPM event in the US.

O Scale Central will be represented at this show.

This year’s theme is “The Art of Aging Your Models to Your Era”.

• Two full days of high-quality models, displays, clinics, hands-on learning centers, prototype layouts, and more in the modern, professional Gateway Convention Center.
• Your models are the heart of St. Louis RPM. Thousands of models brought by modelers like you will be on display! Bring your finished or unfinished models of all scales, gauges, and sizes from all eras.
• Teach, learn, and collaborate with fellow modelers from around the nation. We feature clinic presentations by nationally-recognized historians and modelers.