retro vintage Regal aluminum cake carrier, locking lid cover & plate

Locking cover picnic / potluck / tailgating cake carrier, vintage Regal aluminum.

It's made for a cake up to about 10" x 5", and measures 13 1/2" in diameter across the entire width of the plate.

This has been used, and has a little scratching and wear - it could use a good polishing.