This vintage wooden triangular scale ruler is a must-have for anyone interested in drafting tools, engineering, science, or collectibles. Made in the United States and with no modifications, it retains its original charm and functionality. The three-sided design allows for precise measurements and the wooden material gives it a sturdy feel. Whether you're a collector or a professional, this ruler is sure to impress. The ruler's brand is unknown, but that only adds to its intrigue and uniqueness. It's a rare find and will make a great addition to any collection. Use it for your next project or simply display it as a conversation piece. Don't miss out on the opportunity to own this one-of-a-kind vintage wooden triangular scale ruler.