Thanks to UniWatch, who dug into this, the Phillies and A’s might be wearing 1934 throwback uniforms at CBP in July.

This is all speculation, but the clues line up based on the hat giveaway that day.

From the story:

Nowadays, only three MLB cities have two teams: New York, Chicago, and Los Angeles. But Philadelphia used to have two — the Phillies and the Athletics — and for many years they played an annual intracity exhibition called the City Series. Based on a fan giveaway featured on the Phillies’ 2024 promotional schedule, it looks like the Phils and A’s may be resurrecting the City Series with throwback uniforms this summer.

Based on a fan giveaway featured on the Phillies’ 2024 promotional schedule, it looks like the Phils and A’s may be resurrecting the City Series with throwback uniforms this summer.

Here’s the deal: The A’s are due to travel to Philadelphia for a weekend series on July 12-14 — the last weekend before the All-Star break. The Phils’ promo schedule shows that there will be a cap giveaway for the first game of that series, on July 12.

Here’s what the cap looks like:

via Uni-Watch.com

On the side of the giveaway picture you can faintly make out “Philadelphia City Series.” Could this mean the Phils will wear their 1934 Phillies throwbacks that day? Possibly. According to UniWatch if the Athletics want to wear their 1934 Philadelphia A’s jerseys the Phillies will have to foot the bill because they’re the home team (that’s music to the cheap ass A’s owner’s ears).

The 1934 Phillies home jerseys look like this:

Here’s what the 1934 Philadelphia A’s road jerseys looked like:

This would be pretty cool, but as we all know it depends on Nike, who hates doing their job as much as the next guy. They stopped producing the green St. Patrick’s Day jerseys and forced the Phillies to get rid of their reds this season in favor of a City Connect jersey due to their 4+1 rule. Would they make a one off jersey just for a game in the middle of July who knows? But it would be an awesome dedication (and easy money grab) for a city with a rich baseball history like Philadelphia.