Yet another rando thing found in the laundry room.
Works in Cycles & Eevee.
IRL dimensions: 7 1/4" × 5 3/16" × 1 7/8"
Check out the QR code. 
I really like https://www.barcodesinc.com/generator/qr/
As always, it’s available at blendswap. (Give it a couple days to show up.)