As mentioned several times earlier, Royal Mail (and other) Post and Go machines were at New York's international stamp show at the beginning of the month. And not only (we're told) did their agents not have any Machin definitive stamps, there was no Machin to be had from the Post and Go machines either!
Thanks again to Chris for providing these pictures, presented for the record - we are not stocking any of these.
Royal Mail UK - New York Skyline from Sea Travel set, and Union Flag (no year code)
Jersey Post 'Arms' (with show logo) and Guernsey Post 'Bailiwick Life'
Jersey and Guernsey Flags also with show inscription, from Danny at ATM World
Gibraltar Year of the Monkey and, possibly, Barbary Ape
GERMANT ~ Germany ATM FDC - Germany 2017 ATM FDC, posted on January 3, 2017 from Bonn to Taipei with arrival postmarked on January 19, 2017.