The year 1898 is the key, FN FAL. When the law was passed (in 1998), the specification was that the firearm had to manufactured 100 years before or earlier. But they specified the year 1898, so even if the year stamped on the rifle is 1911 and therefore the gun is 100 years old, it's still not eligible to be shipped directly to you unless you have a Curio & Relic license.
Post-1898 and pre-1961 and on the BATFE Curio & Relic list, you can have it shipped to you on your C&R. Manufactured in 1898 or earlier, and anyone legally eligible to own a firearm can have it shipped directly to them. Post-1961, it has to go through a Class 1 FFL gun shop. All very straightforward, you see.
Of course, check your state laws to see what their attitude on Curio & Relic pistols may be. Some states will allow you to have a C&R pistol shipped directly to your address of record on the Class 3 license. Many don't. If you have a C&R license, the books you get along with it include a manual with the state gun laws for all fifty states and many large municipalities with weird gun laws of their own. Check and see if you have to ship your C&R pistol purchases to a Class 1 FFL gun shop, and what the state rules are concerning your taking possession of such a pistol.