I'm not an expert, so I can't help. Look here:Here is one of my flare tips and I have three questions for you. I would describe as an English Flare Tip Rocket. Is that the correct description? Secondly, is there any way to accurately date this razor? Thirdly, is this more aggressive than the US version as is often the case with English and US razors? I suspect yes to the first question, no to the second, and not sure about the third. Thanks.
Thank you, I have looked at those many times before and both are a very valuable resource.I'm not an expert, so I can't help. Look here:
This page documents what we know about Gillette safety razor serial numbers and date codes. Razors made in USA often left the factory with serial numbers or date codes, which can be used to establish their manufacturing dates. During certain periods sowww.badgerandblade.com