I would say that this is a preform, not a celt. This is "not" to say that this could NOT have be halfted into a handle and used. If you look at the first picture, you will see that the preform has be "capped", It's like taking the top off a turtle shell off, and similar to taking a fluting flake. This is a way to make a long, thin, and most importantly a "flat" flake, that is perfect for making into a spear or arrowhead point. This can be done several times during the reduction process. The other side still has this flake available to take. This makes the preform unbalance. I think if they had wanted to finish this point into a celt, they would have removed the other side, or more likely, not have "caped" the first side, in the first place, to make a stronger celt.
Rock star, a celt is used just like a modern hatchet, to shape and chop wood, trees etc. It is called a celt, to distinguish it from a grooved ax, which was halfted in a differant way to a wood handle. The "celt" was halfted by a "compression fit" into a hole, that was chiseled and burned into the wood handle. No adhisive was used in the halfting of a celt. The grooved ax, was halfted by wrapping a green leam around the grove, and then bound with adhesive and a raw hide strap.
3creeks