The Airmail, from the 1949 edition of Esquire magazine’s Handbook for Hosts, is essentially a Caribbeanized take on a French 75, with rum and honey syrup taking the place of gin and simple syrup.
Older recipes may call for Champagne in particular, but the Airmail really isn’t that fussy – any sparkling wine will do. We like ours with a barely-sweet Cava.