All of our clients share a personal connection and history with Japan.They may have lived in the country for a few years, worked with Japanese companies, have a family member who is Japanese, studied a martial art, or simply have had an enduring admiration for Japanese culture.Deciphering Japanese sword signatures (mei) is an extremely difficult business requiring much study and hard work.If you dislike complexity, if you have a short attention-span or if you like your 'browser' because you like browsing with it, turn back now before it is too late, or you may be doomed to a life of inexorable madness and confusion.It is much better to date a sword based upon the workmanship of the blade.As for the chinese tangs you have shown, you should better not take a white background, because there is not much to see on these photos.You should also better ask in a Chinese sword forum, e.g. Tim, as per my experience with perisan blades too, it's not safe to use the same approach with swords of different cultures.
Then there are swords produced by guilds, where many smiths would use the same standard signature of the founder of the guild or school (often quite good news). Well, after all the caveats, you will be glad to learn that signatures (mei) usually appear on the majority of Japanese sword tangs (nakago) in a traditional, stylised fashion.
Many people consider my current work to be better than a lot of the work coming out of Japan these days.
See this RECENT WORK: This is the full complete traditional Japanese art polishing all done by hand exclusively by David Hofhine.
An unskilled polisher will damage and possibly even ruin your blades and certainly decrease their value.
If you can't afford proper restoration, you are better off just keeping your blades clean and oiled and preserving them as is.