Episode #4: Differentiation and the 1975 Tequila Sunrise Houston Astros
Paul Lukas' great Uni Watch article for ESPN.com can be found here.
And just in case you weren't familiar with the rainbow uniforms, welcome back to 1975:
Some examples of other 1975 MLB uniforms:
All vintage uniform images are from the great Dressed to the Nines database at the Baseball Hall of Fame website.