First of all. I don't know a lot about bikes. I've had this bike for a few years, I bought it out of an antique store. it was reasonably priced and I love it. I've been googling it trying to find what year it is, but I keep finding myself looking at a million bikes like this one, but not the exact thing, so I'm wondering if it's been modified at all or if anyone know's what year it is that'd be amazing. I know it's missing the front fender. I'm currently looking for one. I'm also looking to replace the tires. They are old and cracked and wont hold air.
Here's some images: Schwinn Collegiate 3 - Imgur
Any kind of info would be awesome, thanks a ton.