When Jesus appeared to some and then all 11 disciples, he told then to look at his hands, side and feet. (e.g. Luke 24:39, John 20:20, 27)
Prior to that, when Jesus appeared to and told the women to talk with his brothers, they held his feet. They therefore would probably have noticed his nail marks.
Matthew 28:9-10 (KJV)
And as they went to tell his disciples, behold, Jesus met them, saying, All hail. And they came and held him by the feet, and worshipped him. Then said Jesus unto them, Be not afraid: go tell my brethren that they go into Galilee, and there shall they see me.
However, between those two events Jesus appeared to two disciples walking on the road, one being Cleopas. When he appeared to them “in another form” and walked right next to them, they didn’t recognize him.
Mark 16:12 (KJV)
After that he appeared in another form unto two of them, as they walked, and went into the country.
Luke 24:15-16 (KJV)
And it came to pass, that, while they communed together and reasoned, Jesus himself drew near, and went with them. But their eyes were holden that they should not know him.
Jesus walked next to the 2 disciples all the way to the village Emmaus, so he was probably with them longer than he was with the women and then the 11. During that the two talked with him, stopped to answer his question(s), and urged him to stay with them such that he did. They didn’t realize he was Jesus until he spoke while breaking the bread.
And it came to pass, as he sat at meat with them, he took bread, and blessed it, and brake, and gave to them. And their eyes were opened, and they knew him;
If Cleopas and the other disciple were with Jesus for so long, wouldn’t they have seen his hands and feet earlier and known he was Jesus?
(i.e. or didn’t they see since he appeared to them “in another form”)?