The ones i have posted do not have pontils they have shear marks,not always visible,so they've nothing to do with the regular-ground or melted pontil ones,they're a different type,made probable in Germany-Japan and maybe Canada.
Before i join the marble forums,i used to call the transparant ones handgathered slags and the opaques handgathered swirls.
Well i didn't know then that the same marble type's were made in different countries,one can put the country of origin before the name.
How about that,or are those names already given away for another type?
Oh yes,i know as long as they're mine,i may call them whatever i like LOL.