How rare is the LEGO 700.B.4-1 door?

This piece is from the 1950 Supplemental theme and is considered a rare find for collectors.

What is the condition of this single piece?

The listing specifies it is a single piece, but detailed condition notes are not provided in the facts.

As a Supplemental piece from 1950, its compatibility should be checked against specific vintage LEGO models.

Name: LEGO Single 1 x 2 x 4 Door without Glass (ABB) (700.B.4-1)
Brand: LEGO

Supplemental

Supplemental · 1950

Theme · SupplementalPieces · 1Set Number · 700.B.4-1Year · 1950

Used

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New / Sealed

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How rare is the LEGO 700.B.4-1 door?: This piece is from the 1950 Supplemental theme and is considered a rare find for collectors.
What is the condition of this single piece?: The listing specifies it is a single piece, but detailed condition notes are not provided in the facts.
Is this door compatible with other LEGO sets?: As a Supplemental piece from 1950, its compatibility should be checked against specific vintage LEGO models.