Kidney-shaped food container with clasp in 4 colours

Kidney-shaped food container with clasp in 4 colours: mid 20th c. Pressed aluminium. Partly painted surface. In good condition. Grey 59 pieces - (37 pieces without ears, 22 pieces with ears), Black 51 pieces - (38 pieces without ears, 13 pieces with ears), Bluish greenish 65 pcs - (without ear 35 pcs, with ear 30 pcs), Soldier green 16 pieces - (without ears 3 pieces, with ears 13 pieces) Size: 16-19 x 18 x 11 cm