The upper shell is a polished Turbo marmoratus Linne., 1758 (Green Turban)
The lower one does superficially resemble Turbinella (Xancus) pyrum, due
to the smoothing and color reduction caused by extensive polishing, but
it appears to be a polished Pleuroploca trapezium Linne., 1758 (Pacific
Horse Conch - sometimes called "Fox Shell)
Regards,
Paul M.