Years ago, I created a video on how to learn about a pan using Google Images Search and a photograph. As it’s worth repeating, I made another one, showing how to learn things about several different antique iron pieces, including the funky “7-way Universal Tool.” Take a look – it’s easier than you think!
7 Way Tool
The Thayer cast iron "universal" or "7-way" tool.
Unusual 7-Way “Universal Tool”
The 7-way Universal Tool was patented in 1881 by W.H. Thayer.