TMC TONE INFORMATION SYSTEM MODEL TIS-3A. SERIAL#24540


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This is a TMC Tone Information System Model TIS-3A, Serial number 24540.

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Front panel.

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Here is the ID tag.

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Top view with cover removed.

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Bottom view with cover removed.

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This is in the back. It looks like some after-market modification.

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Top rear perspective view with top cover removed.