And half an hour later:

"So we're in your conveyor. Now what?"

"Sit down," said Tedor. "We've got to hurry."

"But this is the matter duplicator."

Tedor nodded. Each conveyor was equipped with one of the devices—which could print perfect counterfeit money, create clothing, artificial hair, skin tissue, anything to render a visit to past ages as foolproof as possible.

"Whatever you want to copy is ordinarily stored on microfilm," Tedor explained. "But this thing can copy anything."

"I know, but what do you want me—"

Tedor thrust the picture of Malenkov into the receiver. "Easy, Dorlup. You're about the right size. Just sit still. You're going to be Georgi Malenkov, Premier of all the Russians."

Five minutes later, Tedor looked at Malenkov rising from the chair. "It's perfect," he said.