How do we know that real all parts of the Mosle collection were published in the books ?
Of course, I know exactly what you mean by that.........it's a marketing strategy that stops at absolutely nothing. Any means are justified, especially since the origin has nothing, absolutely nothing, to do with quality. It's the same with blades.
And this behavior will never change.
Open your eyes, do your homework.
Always be suspicious and cautious of dealers, especially auctioneers.
Not to be forgotten is the fact that such solid gold Fuchi Kashira can be relatively easily recast today using modern methods. If these are then professionally reworked after casting.........it would be impossible for an amateur to see that it is only a copy and not the origina.l
I remember a thread about solid gold menuki. These things were submitted to the NBTHK for registration...rejected! Because they were newly cast.
Be very careful with solid gold Kodogu without new papers.