| Model 1915 Preußen Telegraph Battalion 3 Tschako |
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| Model 1915 Preußen Tschako for Telegraphen - Batt. Nr. 3 Koblenz - Darmstadt VIII. Armee-Korps. The Tschako is unit marked "Tel Batt.3" on the top of the inside skull. |  | |
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| A view of the Preußen Tschako Model 1915 front plate. |
| A rear view. |  | |
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| A view of the side profile, showing the single air vent on either side, and Reich's Kokarde was worn on the right side. |
 | The liner of issued M1915 Tschako were light leather with rounded "tongues" perforated at the ends for a leather string to adjust the fit. | |
| The Tschako is unit marked "Tel Batt.3" on the top of the inside skull. |  | |
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