Is the LEGO 464-1 plate rare?

Yes, this piece is from the 1966 Supplemental theme, indicating it is a vintage and potentially rare item.

What is the piece count for this set?

This specific item consists of 6 pieces.

The LEGO 464-1 plate belongs to the Supplemental theme.

Name: LEGO 6 x 8 Plates, White (464-1)
Brand: LEGO

Supplemental

Supplemental · 1966

Theme · SupplementalPieces · 6Set Number · 464-1Year · 1966

Used

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New / Sealed

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Is the LEGO 464-1 plate rare?: Yes, this piece is from the 1966 Supplemental theme, indicating it is a vintage and potentially rare item.
What is the piece count for this set?: This specific item consists of 6 pieces.
What theme does the 464-1 plate belong to?: The LEGO 464-1 plate belongs to the Supplemental theme.