| Description | The tread blocks to push against when swinging a lock gate, in this case from the lock by the Coy Carp. |
| Artist | Rob Daykin |
| License |  This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License |
| Make | OLYMPUS CORPORATION |
| Model | E-M1MarkIII |
| Lens Model | OLYMPUS M.25mm F1.2 |
| Focal Length | 25.0 mm |
| F Number | 8.0 |
| Aperture | 8.0 |
| ISO | 800 |
| Shutter Speed | 1/50 |
