Antique Square and Slide Ruler

Antique Square and Slide Ruler

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A nine inch Stanley No.21 combination square and slide ruler. 

$$$$$ · Indexed February 24, 2025 ·



S16 Home
San Francisco, CA
286 Sanchez Street San Francisco CA, 94114 · 415-596-0197






Usage
  • A combination square and slide ruler may be ideal for a variety of tasks, including woodworking, metalworking, and construction, helping users achieve precision in measurements and angles.
  • Such tools are often used by craftspeople, hobbyists, or professionals in workshops or job sites, providing versatility for projects ranging from detailed model-making to structural framing.
  • These rulers may also serve educational purposes, assisting students in understanding the principles of geometry and measurement in practical applications.
History
  • Combination squares like the Stanley No.21 have been acclaimed in woodworking and toolcrafting since their introduction, representing a significant advancement in measurement accuracy during their time.
  • The Stanley Manufacturing Company, founded in 1843, has a rich history as a pioneer in tool manufacturing, contributing to various innovations in hand tools and measurement devices over the years.
  • Tools from the era of this particular combination square might reflect the craftsmanship and engineering standards of the time, showcasing the evolution of design and functionality in measurement tools.
Design Significance
  • The design of a combination square and slide ruler combines functionality with simplicity, making it not only a practical tool but also an enduring design object appreciated by collectors and professionals alike.
  • Mid-century designs often incorporated ergonomic and aesthetic principles, emphasizing usability while maintaining a timeless visual appeal that resonates in contemporary practices.
  • The square's ability to facilitate both angular and linear measurements showcases the importance of multi-functional tools in design, promoting efficiency and precision in various trades.

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