Absent the 3D lettering and 2-color tassels, I seriously doubt it's a Detroit Free Press pennant. Not positive it's even a Red Sox Pennant, although I would lean towards "yes". The colors are right and the style is consistent with known exemplars.

Still (IMHO) there's a 10 - 20% chance it's just a period city/souvenir pennant. As far as it being specifically from 1915, I see no evidence of that. There's really no way to pinpoint the year without a vintage photo, advertisement, catalog listing, etc. The year 1915 seems very plausible (given the style), but the owner would need to share specific provenance/information to that effect.

Pennant
 

I am not much of a pennant guy but thought I would share my most recent acquisition

Wow! That's really cool.

a great, great item for a Reds and a pennant collector.

Beautiful piece of Reds history!

That’s fantastic! Great piece!

I have a chance to buy this Cubs pennant. I'd appreciate anyone who could give me a value on it. I could only find one like it but that one was autographed by all three players for $300.00. Thanks in advance!!

The others will weigh in on value….but ai really like it! Three great players!

Thanks Rob! I found a similar one with the pictures of 12 players. That one sold for $200 which was on Esty so there wasn't any bidding.


https://www.etsy.com/listing/9812379...isting_details

I think the three player one is a little tougher to find than the 12 player one. I would say around $150 for the 3 player version.