RazoRock Teck II Safety Razor
The most popular vintage safety razor on the market, based on my experience, is the Gillette Tech. The Gillette is loved because it's a very mild shaver and can be found on eBay or at antique shops for a relative inexpensive amount of money, usually under $20. All in all, it's a great little shaver. The RazoRock TECK II is inspired by the Gillette Tech but with modern day improvements to make the shave more efficient. The RazoRock version also has thicker chroming and increased weight.
Weights and Measures coming soon.