The second drawing had been pinned over the first, leaving the old lower edge visible.
Four seconds, this one said.
I stopped beside Bench Two while the assistant checked the release lever. The receiving plate was the same one. So was the narrow place in the feed where a bare finger could reach the light. Yesterday I had watched the dial and arrived too late. The needle had dipped, and Veylan had ended the attempt before I could try to turn a small result into a larger one.
The assistant lifted the corner of the new diagram to reach a fastening beneath it. For an instant the old two showed clearly. Then the paper fell back over it.
"Is this the copy we use?" I asked.
He glanced up. "The one on top."
I had meant my assessment, folded in the wallet, but I looked at the drawing again before taking it out. The new interval was easy to find. I wanted the rest to be as easy.
