On the flıp side, going the other way......
I had to send some signed documents to our accountant that HMRC wouldn't accept scans of.
A5-sized envelope, bulky but not heavy. Sent 'signed for' from the PTT at Fethiye Harbour last Friday.
Arrived at their offices Tuesday lunchtime.
I've sent post for less than 30 miles away in the UK that's taken longer......