Seymour Block Kit HO Scale 243-12100Design Preservation Models Seymour Block 7 x 3" 18 x 10. 2cm HO Scale HO Scale Plastic Structure Kit of the Seymour Block Building by Design Preservation Models. FEATURES: The Seymour Building has an old fashioned downtown store appeal. Extreme realism is displayed with this building. Architectural design of the times is in true detail with this kit. Wall sections are molded in a cream colored plastic and etched in fine detail of brick and cement. Two