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M4-1a ALT
M4-1a ALT
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M4-1a ALT

Part Number: M4-1a
Starting at: $13.24
Availability: Usually Ships in 1 to 2 Weeks

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The ALT (M4-1a) auxiliary sign is mounted above a route sign to indicate an officially designated alternate routing of a numbered route between two points on that route. This sign is a horizontal rectangle with a black legend and border on a white background.
  • Retroreflective sign is visible day and night 
  • Durable, weather-resistant traffic grade aluminum 
  • Pre-punched with radiused corners and 3/8" mounting holes

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