Did you get it right?
This black-and-white radio-repair puzzle asks you to find a keyhole, nail, ticket, and umbrella among vacuum tubes, wire coils, pegboard tools, parts drawers, schematics, and bench shadows.

The Answer
The correct answer is: The four objects are the keyhole, nail, ticket, and umbrella. The umbrella is the hardest because it is hidden as a curved shadow shape near the upper-left side..
Here is why
- The keyhole is on the drawer area.
- The nail is hidden near the lower workbench and schematic area, and the ticket is near the tube box.
- The umbrella is not a real umbrella. It is formed by the curved shadow and linework near the upper-left side.
Why people miss it
The radio bench has many wires, tools, and black ink lines. The fourth object blends into the workshop shadows instead of appearing as a clean object.
Answer Image
The marked answer image circles all four intended object locations.

All Object Locations
- Keyhole: on the parts-drawer area.
- Nail: near the lower workbench and schematic area.
- Ticket: near the tube box on the right.
- Umbrella: curved shadow shape near the upper-left side.
What answer did you get before checking?