“Gilling is our head mechanic. You can question him about it. He's an intelligent man.”
In a few minutes the mechanic appeared at the door.
“You wanted me, sir?” he asked.
Markfield introduced the Inspector with a gesture, and Flamborough put his questions.
“You've seen this thing before?”
The mechanic came forward to the table and examined the holder carefully.
“Yes, sir. I made it myself.”
“You're quite sure of that?”
“No mistake about it. I know my own work.”
“Tell us what you know about it,” the Inspector demanded.