Any Vintage Hat experts out there?
 

Could this be a vintage Philadelphia A's hat? There is no markings on inside. Thanks for your help.

B

Without markings it would be very hard to est. the date - any other info? Colors do not not match any early Philly uniforms

Take care Jimmy

The Kansas City Athletics wore that color scheme for a while (predominantly mid-late '50s). But I don't believe they ever wore this Pillbox style, unless it was a special event or exhibition.

Can you post pics of the inner sweatband/underside of bill?

Might be part of the 1976-77 pillbox MLB line that was marketed to fans. Have seen some on EBay that command nice prices. Don't have the details on teams represented unfortunately.

Pillbox cap
 

New Era offered this style cap as a custom order for high schools and colleges, along with major and minor league clubs awhile back. As previously stated, without markings it would be hard to identify...

Do you have better pictures (possibly from the inside as well)?