That would be overnight express.
Express used to be a good deal on high value items at one time.
They used to charge less for insurance on express mail than they did for insurance on priority mail. I guess they figured that the less handling means less chance of damage.
So, even though the shipping was more, the total price would usually be less to ship express insured vs priority insured on an item that was valued at say, $3,500 or more.
But, they did away with that a year ago or so and made all the insurance rates the same regardless of type of service.
Then they did the ultimate smoke and mirrors trick and while they were touting that they lowered the price of stamps, on the other side of the coin, they took away the discount for processing a shipment on-line. That was nice of them.
