Thanks all for your help. This particular blade was not expensive, and I bought it on a whim, many of which pay of, but in this particular instance, I can see not. I feel comforted to know that so many of you were quick to identify the faults, and clearly I need to study more.I have entered into a new realm of collection, and hope to be able to identify the signs more competently, as have you (collectively ) before my next purchase. Thankfully, I did not pay too much money, but hopefully won't make the same mistake in the future. Many thanks for the information and I am searching for the books now to give me a good general comprehension of Japanese swords.