Home at last

Two of King Odysseus’ old friends recognize him, his aged nurse, Eurycleia, and Argos, the only dog to whom Homer gave a name. 

 ... Now, as they talked on, a dog that lay there lifted up his muzzle, pricked his ears... Infested with ticks, half-dead from neglect, here lay the hound, old Argos.
But the moment he sensed Odysseus standing by he thumped his tail, nuzzling low, and his ears dropped, though he had no strength to drag himself an inch toward his master. Odysseus glanced to the side and flicked away a tear, hiding it from Eumaeus...

... That was the scar [Euycleia] was then holding in her hands.
She traced it out and recognized it.  She dropped his foot.
His leg fell in the basin, and the bronze rang out.
It tipped onto its side.  Water spilled out on the ground.                          
All at once, joy and sorrow gripped her heart.  Her eyes
filled up with tears, and her full voice was speechless.
She reached up to Odysseus' chin and said:

"It's true, dear child. You are Odysseus, and I didn't know you,                                
not till I'd touched all my master's body."