Number/Symbol Blocks (1011-1) is a Duplo and Explore LEGO set released in 1976 with 100 pieces. Browse the parts list, minifigures, and verify loose bricks with our free scanner. Collectors browsing Duplo and Explore sets use this inventory to verify loose parts, compare color variants, and read official build manuals without downloading PDFs. This set includes 17 unique part types.
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Buying checklist
Quick context before you buy this set used or verify a marketplace listing.
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Release year
1976 (50 years ago — may be retired)
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Catalog scale
100 parts listed · 17 inventory lines tracked
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Minifigures
No minifigs in inventory (brick-only or Technic set)
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Build manual
No digital manual in our catalog — check the box tab or LEGO.com
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Gray era
Pre-2004 set — may use old light/dark gray instead of bluish gray
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Shipping weight (est.)
~90 g for parts inventory (excludes box/minifig packaging)
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Before you buy used
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Market value
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Parts in this set
17 parts · updating…
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Duplo Tile 2 x 2 x 1 with '0' Print2756pr0010 · ×6 · White -
Duplo Tile 2 x 2 x 1 with '1' Print2756pr0001 · ×6 · White -
Duplo Tile 2 x 2 x 1 with '2' Print2756pr0002 · ×6 · White -
Duplo Tile 2 x 2 x 1 with '3' Print2756pr0003 · ×6 · White -
Duplo Tile 2 x 2 x 1 with '4' Print2756pr0004 · ×6 · White -
Duplo Tile 2 x 2 x 1 with '5' Print2756pr0005 · ×6 · White -
Duplo Tile 2 x 2 x 1 with '6' Print2756pr0006 · ×6 · White -
Duplo Tile 2 x 2 x 1 with '7' Print2756pr0007 · ×6 · White -
Duplo Tile 2 x 2 x 1 with '8' Print2756pr0008 · ×6 · White -
Duplo Tile 2 x 2 x 1 with '9' Print2756pr0009 · ×6 · White -
Duplo Tile 2 x 2 x 1 with Addition Sign '+' Print2756pr0012 · ×6 · White -
Duplo Tile 2 x 2 x 1 with Colon Sign ':' Print2756pr0014 · ×4 · White -
Duplo Tile 2 x 2 x 1 with Equal Sign '=' Print2756pr0015 · ×8 · White -
Duplo Tile 2 x 2 x 1 with Greater Than / Less Than '>' / '<' Sign Print2756pr0016 · ×8 · White -
Duplo Tile 2 x 2 x 1 with Minus Sign '-' Print2756pr0013 · ×6 · White -
Duplo Tile 2 x 2 x 1 with Multiplication Sign 'x' Print2756pr0017 · ×4 · White -
Duplo Tile 2 x 2 x 1 with Obelus / Division Sign '÷' Print2756pr0011 · ×4 · White