Is this LEGO set rare for collectors?

Yes, this is a vintage piece from 1980 under the Supplemental theme, making it a sought-after item for collectors.

How many pieces are in the 831-1 pack?

The LEGO Parts Pack 831-1 contains exactly 46 pieces.

This pack belongs to the Supplemental theme and was released in 1980.

Name: LEGO Parts Pack, Black Bricks (831-1)
Brand: LEGO

Supplemental

Supplemental · 1980

Theme · SupplementalPieces · 46Set Number · 831-1Year · 1980

Used

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New / Sealed

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Is this LEGO set rare for collectors?: Yes, this is a vintage piece from 1980 under the Supplemental theme, making it a sought-after item for collectors.
How many pieces are in the 831-1 pack?: The LEGO Parts Pack 831-1 contains exactly 46 pieces.
What theme does this black brick pack belong to?: This pack belongs to the Supplemental theme and was released in 1980.