This is the HO Scale 2-Story Farm House Kit from American Model Builders.
Perfect for the city or country family, this two-story home is loaded with details. There's a peel and stick "tin" roof, along with a small lean-to for the back that can be used as a mud room, summer kitchen or bathroom. The front porch features delicate, laser-cut trim. A pair of cast metal chimneys round out the kit. Finished model measures: 4-3/4" Long, 3-1/2" wide and 4-1/4" tall (11.8 x 8.7 x 10.6 cm).