I'd be interested in hearing how the factory achieved what appears to be a reverse pattern i.e. textured on the inside rather than the outside.
This Czech. manufacturer made many 'ball' shaped pieces, including some smooth ones with cut and flashed, and simple gilding over colour patterns.............. but surface textured examples such as the olives, dimpled, quilted and Nemo pieces - at least those shown in the books, all seem to have the pattern texture on the outside.
Most of these 'ball' examples show to some extent the cross on the base which was created by the four part mould.
Forgive my ignorance here, but might this one be some form of part or dip-mould process?