A faithful HO (1:87) master STL of an early 20th century two‑storey railway signal box — ideal for HO model railroad layouts, period dioramas, and display. This model captures the key visual features seen in period signal boxes: a robust masonry lower block with three arched recessed bays across the front, a cantilevered glazed upper cabin with continuous vertical mullions on the front and visible side, a hip roof with modest eave overhang and a small chimney, and an external straight stair on the right with a landing and surrounding handrail. The stairs, handrail, mullions, and masonry proportions are modelled to balance visual accuracy with printability at HO scale. You will receive one master STL scaled to 1:87 (HO) and a short conversion guide for other scales. The model includes a slim ground plane for easy mounting on track ballast or a base. Print orientation recommendations: for FDM, print the base flat and add supports for the stair underside and cabin cantilever; for resin, light supports at the overhangs will preserve mullion detail. Use washes and drybrushing to bring out the masonry arch recesses and handrails. Areas occluded in the source photo (rear and lower‑right base) were conservatively modelled and are documented in the included notes. Perfect for hobbyists looking to populate branch line scenes or add a period architectural element to a layout.

Available railroad scales: Z (1:220), N (1:160), HO (1:87.1), S (1:64), O (1:48)

Ready to print digital download in one piece with no assembly needed.

IMPORTANT: You are purchasing the file in the scale selected below.

Miniature Reality Makes practical, print-ready scenery and vehicles so you can economically fill out the background of your layout, diorama, or tabletop without paying centerpiece prices for everything (Our hobbies are dying because the average person can't afford to enjoy them, we want to help fix that). We want your miniature worlds to feel real and full of life - with more variety, more detail in every scene, and prices that won't hold you back.

Miniature Reality Personal-Use License (No AI / No Resale)

• Allowed: personal printing for your own layouts, dioramas, tabletop games, and personal display.
• Not allowed: sharing or distributing the digital files (free or paid), re-uploading to any site, bundling, remix resale, or selling/redistributing printed outputs.
• Not allowed: using the files (or derivatives) to train, fine-tune, test, or feed any AI/ML system (including dataset creation).
• Not allowed: commercial use of any kind without a separate written commercial license from Miniature Reality.
• Enforcement note: digital files may include purchaser-linked identifiers / forensic watermarking to help investigate unauthorized distribution.