The texture folder and blend file should be placed in the same directory.

If the texture still fails to be referenced, press blender's File/ExtarnalData/FindMissingFIles and specify the "Texture" folder.

[Unique signs such as place names]

Unique signs such as place names cannot be turned into assets. For this reason, psd files that can be edited with Photoshop or other software are included.

[When the Zfight happens?]

This sign is made with a thickness of 2mm as per the standard, so a Zfight may occur with a renderer such as EEVEE.

If this happens, set the ClipStart of the camera's View to a larger number or the End to a smaller number to solve the problem.