In the last chapter of Sheridan's book, when one of Sheridan's characters is going to do the jump...it's the pilot who is wearing a pair of wrap-around dark glasses.
In a prior section, when he's organizing a jump load with the Saigon club, someone has horn-rimmed glasses.
One of the descriptions of the Cooper glasses was horn-rimmed.
A slender youth with horn-rimmed glasses held to his head with a thick elastic
band raised his hand. "Yo," he said.
...
Grecco took five twenty dollar bills from his wallet and held them out to the Vietnamese pilot. "One hundred U.S. dollars," He could not see the man's expression, for he had on a pair of wrap-around dark glasses. He wore a black baseball cap and black coveralls with two gold lotus blossom insignias on each shoulder indicating that he was a captain. He had a lavender scarf tied casually about the neck. A pearl handle pistol hung at his hip. Aping his idol, Air Marshal Nguyen Cao Ky, Grecco mused, South Vietnam's Clint Eastwood.
"Why do you want to do this?" the pilot asked. His voice was flat, quite void of any feeling.
"That's not part of the bargain," Grecco said. "The bargain is that you fly me fifty kilometers north of Tay Ninh."
"One way?" the pilot asked taking the money and examining each bill carefully.
"Yes, one way," Vince said.
