Trying to identify the brand/model of this disc

Disk Harrow resembles a Tufline. What's written on what appears to be ID tag? If my guess is correct call (662) 328-8347 for parts info.

It would be interesting to see what's stamped on that tag in photo below.

Pics won't blow up

Looks like it may have grease fittings.

Disc scrapers are a huge Plus if it has them......like a Grand +

They typicly don't have bearings but rather bushings that the gear spins on.

Look for slop

Take a couple long 4x4's with you so you can pry it off the ground in each corner and see how the discs spin /slop ,etc.

I think your good at 450....perhaps you'll find some points of disscussion to bring it down a touch.

Reality is...your gonna drag it through Dirt and it won't care.

A new similar deere unit is 2k+ iirc

Paint is cheap if you want Green.

It appears from close-up inspection of photo's that this disk has white iron brgs that require regular greasing to keep from wearing rapidly