The Vintage Catapres Sliding Chart Triangular Card is a unique tool designed for performing length and area calculations. Made in Canada, this collectible item is a rare find for those interested in vintage engineering and scientific tools. With its specific purpose and original design, this triangular card serves as a functional and historical piece for individuals with a passion for retro technology and problem-solving tools.
Details:
• Brand: Catapres
• Type: Sliding calculation chart
• Shape: Triangular
• Use: Length and area calculations
Condition:
Pre-owned. Visible wear including surface marks and edge wear consistent with age. See Photos
Special Features:
• Sliding card function
• Triangular design
• Compact size
• Mechanical calculation tool
Bundle and Save:
Bundle and save! Combine with other vintage tools or educational items from our store to receive discounted shipping plus 10% off each additional item. Favorite and follow our eBay page for more puzzles, games, toys, and random finds we think you’ll love: https://www.ebay.com/usr/allrmerch
