This looks much better than the garage sale finds we usually see, but precise
identification of stamps and the
condition of stamps make all the difference and your images are too small to give an opinion. If the other country sections also include 19th century material, you likely have value over $100 and it could be many hundreds. However, unless you are willing to take the time to scan (with a scanner, not a camera or smartphone) and post images of all pages, in-person inspection will be needed. Check out
www.stamps.org and search for a local club or stamp dealer to see if someone is willing to assess this; they may charge a fee. It's a question of your time (scanning and posting images) versus someone else's (in-person inspection). And be aware that a stamp dealer may give an estimate in terms of wholesale purchase price, not retail sales price.