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6673 – Back A

April 20, 2025April 21, 2025 Master Builder 3678 Views

From: 6673: Solo Trainer
Name: Universal Trainer 1
Instructions: View PDF

Contributions

  1. Name and PDF submitted on April 20, 2025 by: KILDET
  • ← Missile Cruncher
  • 6673 – Back B →

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About This Site

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There were once pictures of additional LEGO® builds on the back of set boxes. Written on the boxes was typically something about the endless building possibilities, "Build any of these exciting models with this set!" There were no instructions for these alternate builds, until now.

Sets

  • Adventurers
  • Aquazone
  • BATMAN
  • Bionicle
  • Belville
  • Building Set with People
  • Castle
  • Duplo
  • Fabuland
  • Harry Potter
  • Holiday and Event
  • LEGOLAND
  • Model Team
  • Pirates
  • Space
  • Star Wars
  • Technic
  • Train
  • Town
  • Universal Building Set
  • Western
  • More Sets
  • Misc

Useful Links

  • Submit Instructions!
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  • Large Builds (<400 pcs)
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  • How BOTBB was Built

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The classic space set that never was.

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