این یک عکس دستکاری شده است به این معنی که به صورت دیجیتالی از نسخهٔ اصلی تغییر یافته‌است. تغییرها: vectorized. اصل آن را می‌توان در اینجا مشاهده کرد: US no hitchhiking signs.png. تغییرها توسط Arnaud.ramey انجام شده‌است.

This file is in the public domain because it comes from the Manual on Uniform Traffic Control Devices, which states specifically on page I-1 that: Any traffic control device design or application provision contained in this Manual shall be considered to be in the public domain. Traffic control devices contained in this Manual shall not be protected by a patent, trademark, or copyright, except for the Interstate Shield and any other items owned by FHWA.

سیاهه بارگذاری اصلی

This image is a derivative work of the following images:

• File:US_no_hitchhiking_signs.png licensed with PD-USGov
  • 2007-08-28T14:05:56Z Liftarn 347x208 (3519 Bytes) {{Information |Description=From the [[:en:MUTCD]]. These are the two signs under federal standards that are used to designate an area as "no hitchhiking". Commonly seen near prisons. |Source=Originally from [http://en.wikip

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