File:Gundlach periscope.jpg
Size of this preview: 223 × 600 pixels. Other resolution: 382 × 1,027 pixels.
Original file (382 × 1,027 pixels, file size: 76 KB, MIME type: image/jpeg)
Gundlach Periscope used to look forward (upper panel) and backwards (lower panel).
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 22:53, 5 September 2018 | | 382 × 1,027 (76 KB) | Gundlach Periscope used to look forward (upper panel) and backwards (lower panel). |
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