Whatever someone is willing to pay for it. It's an old, used bridle; its intrinsic worth is pretty much nothing.
I've put a link in the related links section to an auction site so if you're interested you can see how much someone did pay for it (you have to sign up to see, and I'm personally not that interested, but since you asked you might be).
Secretariats career winnings total $1,316,808
Big Red
Lifting bridle or mainsheet bridle?
Lucien Lauren
Messina is young
His his Kentucky Derby record was 1:59
2 mins 24 secs
1. Can you hand me the bridle? 2. What kind of bridle is this? 3. This is a western bridle. 4. I will hand you my bridle asap. 5. Can you fix a bridle? 6. Well certainly i can! 7. We have a pink bridle here, with different colors too
The homophone for bridle is bridal.
Mostly a figure 8 bridle or a jumping bridle not a dressage bridle.
A bitless bridle is often referred to as a hackamore or a bridle without a bit.
Well, it depends. if you get it from fleetfarm, it is like 9 bucks