Welcome to the OG group. Although things are only original once, IMO the sign in the current condition has minimal value because of the scope of the damage. If your display of signs included overlapping corners or edges of other signs, then this sign becomes much more presentable. However if you wanted to experiment with repairing it, the experience may be enjoyable. I don't believe the sign value varies significantly either way. Many of the OG members still have their first signs and first pumps regardless of condition or rarity. Enjoy the hunt.