Is the LEGO 459-1 window refill rare?

Yes, this piece is from the 1966 Supplemental theme, making it a vintage and collectible item.

What is the piece count for this set?

The LEGO 459-1 set contains 20 pieces.

This item is part of the Supplemental theme.

Name: LEGO 1 x 1 x 1 Windows Refill, Red or White (459-1)
Brand: LEGO

Supplemental

Supplemental · 1966

Theme · SupplementalPieces · 20Set Number · 459-1Year · 1966

Used

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New / Sealed

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Is the LEGO 459-1 window refill rare?: Yes, this piece is from the 1966 Supplemental theme, making it a vintage and collectible item.
What is the piece count for this set?: The LEGO 459-1 set contains 20 pieces.
What theme does this item belong to?: This item is part of the Supplemental theme.