With the help of some on the forum, and reference to Rasmussen's "Twain A to Z" book, I have updated the list as follows (still a work in progress, though):
Australia
Austria*Azores*BermudaCanadaEgyptEnglandFranceGermany*GibralterGreeceLebanon*MauritiusNew ZealandNicaraguaIndiaItaly*MadeiraPakistan (then part of India)Palestine (now parts of Israel, too?)Russia
ScotlandSouth AfricaSpainSri Lanka (then known as Ceylon)SwedenSwitzerlandSyriaTasmaniaTurkey(not to mention the U.S.)


- B. Clay Shannon