Miami Marlins at Milwaukee Brewers

"The Brewers wore replicated uniforms of the Milwaukee Bears from 1923. Their opponents wore uniforms of the 1956-60 Triple-A Miami Marlins with a patch on a sleeve to honor Hall-of-Famer Satchel Paige, who pitched for the Marlins from 1956-58."

St. Louis Cardinals at Milwaukee Brewers

Cardinals and Brewers wore 1913 throwbacks.

Cincinnati Reds at Milwaukee Brewers

Seattle Mariners at Milwaukee Brewers

Philadelphia Phillies at Milwaukee Brewers

The Phillies, wearing 1973-83 road jerseys, defeated the 1972-77 clad Milwaukee Brewers, 9-5.

Atlanta Braves at Milwaukee Brewers

In the comments, werthj tells us of this game, where the Brewers wore the uniforms of the Milwaukee Bears and the Braves were the Atlanta Black Crackers, two negro league teams.

Article about this from the Borchert Field website can be viewed here.

St. Louis Cardinals at Milwaukee Brewers

The 25th anniversary of the 1982 World Series between the Brewers and the Cardinals was commemorated with both teams wearing uniforms from those years.

Kansas City Royals at Milwaukee Brewers

The Brewers dressed as the negro league Milwaukee Bears, and the Royals dressed as the Kansas City Monarchs.

Milwaukee Brewers at Kansas City Royals

Washington Nationals at Milwaukee Brewers