How rare is the 1977 LEGO Play Mat (787-1)?

This mat is a rare item from the 1977 Supplemental theme, consisting of only 1 piece.

What is the theme of this LEGO set?

The theme for this set is Supplemental.

This specific set contains only 1 piece.

Name: LEGO Play Mat with Drawstring (787-1)
Brand: LEGO

Supplemental

Supplemental · 1977

Theme · SupplementalPieces · 1Set Number · 787-1Year · 1977

Used

—

New / Sealed

—

Live on eBay now

JunkPal AI· resale insightanalyzing sold comps…

▍

How rare is the 1977 LEGO Play Mat (787-1)?: This mat is a rare item from the 1977 Supplemental theme, consisting of only 1 piece.
What is the theme of this LEGO set?: The theme for this set is Supplemental.
How many pieces are in the LEGO Play Mat (787-1)?: This specific set contains only 1 piece.