Autogolazzo found what I couldn't - the 1983 Team America, er, team:
My preference for "United States," as opposed to "Team America" or variations thereof, dates from this. And I wasn't even a Diplomats fan.
Was a time when big 70's collars, numbers on sleeves (which I have been informed are known as "TV numbers") and big jersey numbers on the front were perfectly normal for US clubs. Even with the stars down the side of the shorts, this was positively restrained.
Okay, no, it wasn't. But it looked a lot like the flag.
An upside-down flag, the national symbol of distress. You couldn't have asked for a more appropriate uniform.
I think TOTC suggested this earlier - pictures of certain Hall of Famers wearing US gear. Presumably someone knows where or when or what, but it sure looks like US gear.
Frank "Pee Wee" Wallace, a hero of 1950. (And World War II, but that's not our topic.) Note with amazement the grammatically correct "U.S.A." Because just "USA" would have been wrong. I don't get it either. It's like the New York Times was designing the jerseys back then. No wonder the Fed was always losing money, wasting cash on profligacies like periods.
Len Oliver, whose prolific and varied Hall of Fame career helps narrow down this picture not in the slightest. More wasteful periods on the jersey. (Actually, I like the periods. It's almost as cute as when the Warriors used to wear "PHILA." and the Lakers wore "MPLS." It implies that otherwise, they would have actually tried to spell out "UNITED STATES OF AMERICA." Maybe Nike should give that a try?
And here's a random one from the Hall of Fame. Tom "Whitey" Fleming, wearing a jersey with a shield on it.
What's the big B doing? My theory is, this was a Bethlehem Steel jersey worn to commemorate one of their frequent Open Cup wins. This is sort of new in MLS, more familiar to football fans as an Italian trait - but it was done now and again in baseball in this era.