It seems as Wuff says, this seller is either ignorant or doesn't care, the latter is more probable together with a good smattering of the former and again as you say Wuff, just because it's in a named box does not mean that the weight belongs. If the seller was honest and had respect for his potential purchasers and himself, he should describe as, 'although in a xxxxx box, there are no markings on the weight' then people can decide for themselves. I believe that in collecting weights, if you like what you see and it's affordable, then have it regardless of what it's in and what, if any, markings are on it which I'm sure is what a lot of people do and when they do and if they get more serious in their collecting, that's when you join discussion sites like this one and buy the books, that's how it started for me.