I am very new to the world of genuine nihonto and I am currently doing my research. My interest is to eventually acquire a kaiken or similar kind of small blade, as a modest start. This has raised a few questions that I hope can be answered.
1. Are there any books specifically about differentiating and appraising knives?
2. Besides kaiken, and excluding the usual tanto (and of course craft knives), were there any other kinds of Japanese knives?
3. Are these knives typically signed and/or documented?
4. What price range do these reasonably fall into?
My apologies if these questions have already been covered somewhere. Best regards