How rare is the LEGO 706-3 piece?

This piece is from the 1974 12V theme and is listed as a single piece, indicating its rarity.

What is the theme of this item?

The theme for this LEGO part is 12V.

This specific piece, 706-3, was released in 1974.

Name: LEGO 12V Rail Contact Wire with Transformer Connector with Cap (706-3)
Brand: LEGO

12V

12V · 1974

Theme · 12VPieces · 1Set Number · 706-3Year · 1974

Used

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New / Sealed

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How rare is the LEGO 706-3 piece?: This piece is from the 1974 12V theme and is listed as a single piece, indicating its rarity.
What is the theme of this item?: The theme for this LEGO part is 12V.
What year was this item released?: This specific piece, 706-3, was released in 1974.