| 1. | wigwag signals at many of its crossing in the 1920 1940s.
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| 2. | A link between downtown Southern Pacific wigwags remaining from the PE era.
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| 3. | A few wigwags continue in operation as of 2006.
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| 4. | Disappearing banners were the only style of wigwag approved for use in Canada.
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| 5. | Several movie clips of the wigwags in this area were made in 2009.
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| 6. | This scheme was rare, partly because the L & N used few wigwags.
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| 7. | Wigwags were also manufactured by Union Switch and Signal ( US & S ).
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| 8. | PE's earliest wigwags were gear-driven, but proved difficult to maintain.
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| 9. | Nevada was served by the wigwag signals.
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| 10. | In 2011, working wigwags were installed at Disney California Adventure Park in Anaheim, California.
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