A standard AMEX green was the first credit card I ever owned. I had access to a US APO mailing address when working for the Taif Ordnance Corp School in Saudi Arabia. Thinking I was flush with petrobucks, they issued the card upon first request. That card did quite a bit of travelling back when the world was a tiny bit less global. I should've kept the receipts as a journal!
Even when first getting to Vancouver in the late 90s, I used to change on that account although it was in US dollars. Then, every month, I'd take the SkyTrain down to the Burrard Station and go in to the AMEX office and pay my bill.
I don't remember at one point I decided it was silly to have to pay an annual fee for the privilege. I swapped for the their platinum, but by that time I had pretty much switched over to a MasterCard.
Alas, it's the end of another era ...