Vintage Mid-Century Modern MCM stackable nesting bamboo oyster shell pyrography

Vintage Mid-Century Modern MCM stackable nesting bamboo oyster shell pyrography boxes   Three boxes total.   Seashell with oyster shell pyrography (burn-engraved shell artwork) on the lids, reminiscent of mid-century Asian or coastal keepsake boxes.   Lined with red velvet with the outside being bamboo.   The boxes can be used separately or stored inside each other!   Some peeling and wear to the outsides. See pictures. Beautiful red velvet lining that may need a cleaning.