How rare is the LEGO 483-5 set?

This set is from 1966 and belongs to the Supplemental theme, indicating it is a vintage piece.

How many pieces are in the LEGO Angle, Valley and Corner Slopes?

The set, number 483-5, contains a total of 20 pieces.

The theme for this piece set is listed as Supplemental.

Name: LEGO Angle, Valley and Corner Slopes, Blue (The Building Toy) (483-5)
Brand: LEGO

Supplemental

Supplemental · 1966

Theme · SupplementalPieces · 20Set Number · 483-5Year · 1966

Used

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New / Sealed

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How rare is the LEGO 483-5 set?: This set is from 1966 and belongs to the Supplemental theme, indicating it is a vintage piece.
How many pieces are in the LEGO Angle, Valley and Corner Slopes?: The set, number 483-5, contains a total of 20 pieces.
What is the theme of this specific LEGO set?: The theme for this piece set is listed as Supplemental.