First of all I do not believe this is the largest sword that exists, actually I think there might be hundreds of swords once owned by Greater Humans and Nephilim Ancestors that possessed giant swords that exist today.
Goliath possessed such a sword, a Great sword like this would be a symbol of power and would be a well revered trophy. Friend or Foe the sword from this famous battle would be so sought after anyone stumbling across it would hide it into their private collection and it would just disappear. African Sword
1 Samuel 17:45
45 Then said David to the Philistine, Thou comest to me with a sword, and with a spear, and with a shield: but I come to thee in the name of the LORD of hosts, the God of the armies of Israel, whom thou hast defied .
1 Samuel 21:9 KJV
1 Samuel 22:9,10 KJV
1 Samuel 17:51
51 Therefore David ran , and stood upon the Philistine, and took his sword, and drew it out of the sheath thereof, and slew him, and cut off his head therewith. And when the Philistines saw their champion was dead , they fled .
This weapon is without a hilt, handle, or guard. It is 6 feet in height and behind glass. This sword blew my mind, it is the largest sword in the museum’s collection.
If the hilt and handle was smaller than the Clayborne, or the Flamberge and was only two added feet we would have an 8 foot sword.
If the handle was 1 foot it would mean that this sword was a one handed sword a 7 foot one handed sword.
If the hilt, handle and guard was an added 3 foot which would not be excessive we would be talking about a 9 foot sword.
What if this was a giant spear?
This would even be more remarkable and would not be the largest known sword but would be the largest known spear.
1 Samuel 17:7
7 And the staff of his spear was like a weaver’s beam; and his spear’s head weighed six hundred shekels of iron: