Historical clue formulations

• Meccano offering for budding builders — 2026-07-13
• Classic toy for budding engineers — 2026-01-23
• Toy for a budding engineer — 2021-11-02
• Old A. C. Gilbert toy — 2013-08-01
• Classic Meccano toy — 2013-06-01
• Toy with blueprints — 2009-01-31
• Construction equipment — 2007-06-15
• Construction toy — 2007-02-04
• Classic toy for budding engineers — 2005-05-03
• Future architect's plaything — 2001-03-26