Here is the message sent to me just now:
I'm an art dealer in New York and have just wasted about a week of negotiations on a supposed sale, that has turned out to be a scam I'm sure.
I did a google map search on the 'client's' address - turns out to be an airport. I did a google map search on the courier, turns out to be a residential address in the UK.
I also did an IP search on the emails, both of which were located in isolated places, nowhere near where the 'client' or 'courier' are located.
Only after these red flags did I do a google for art scams. Thanks for the additional information and confirming my worse fears - fortunately before I acted on any payments etc.
Perpetrators name: Richard Marrino: [firstname.lastname@example.org]
The courier name: Techie Courier