Welcome to the forum, nice looking carpet.
Its a Machine made carpet, it's probably worth several hundred bucks if it's in nice shape, slightly more if it's in really excellent shape with no stains, problem areas or worn spots.
Cant tell from the photos provided, but it looks like a stain which would really drop the value. Someone looking for vintage pieces may be willing to spend a pretty penny for something like this if it's in really nice shape. What were you thinking of doing with it? Craigslist would be my bet for this, although trying to list on eBay with best offer in store inventory may not be bad either