ISTR from '80s, when we were in US and FedEx was starting to boom within US, especially business centres on East Coast. All packages were flown to a central hub (Memphis ?) at end of working day, sorted overnight, and flown on to arrive at dawn. Within cities collection and delivery service could be for any address, and within multi-tenant office building for any tenant, and for a premium for any desk within that tenant's office space.
There was an interview with a FedEx Sales senior in the business pages of Washington Post or Baltimore Sun. He said that quite a lot of business came from offices in tower blocks in New York City, paying the premium. Often those offices had an internal (within the tenant's space, or within the block) messenger service. But employees authorised to have a FedEx 'out' tray would use the FedEx service to send an envelope overnight to a colleague who might be only a few desks away. It would go to the 'hub' and back, but still reach the destination desk in the morning more reliably than the internal messenger service. It was rare for the employers' beancounters to query the cost
(mere guide at) Jet Age Museum, Gloucestershire Airporthttp://www.jetagemuseum.org/
TripAdvisor Excellence Award 2015http://www.tripadvisor.co.uk/Attraction ... gland.html