Listed below are some of the other notable construction toy systems that were produced during the 20th century. The list is by no means exhaustive, as by some estimates hundreds of such systems have come and gone over the years.
  • Bing's Structator (Germany)
  • BRAL (Milan, Italy)
  • Buildo
  • Construction (E.Germany)
  • Constructor
  • Construct-o-Craft
  • Elektromehaniskais konstructors (Russia)
  • Ezy-Bilt (Australia)
  • FAC (Sweden)
  • Lyons
  • Marklin Metall (Germany)
  • Mekanik (Sweden)
  • Mek-Struct (China)
  • Mini Meta-Build (New Delhi, India)
  • Necobo
  • Palikit
  • Pioneer
  • Primus Engineering Outfits (England)
  • Schefflers
  • Sonneberger
  • Steel Engineering (U.S.A.)
  • Structomode
  • TECC (Czeckoslovakia)
  • Tekno (Norway & Denmark)
  • Thale Stahlbau Technik (E. Germany)
  • The Constructioneer
  • The Engineer (Toronto, Canada)
  • TRIX (Germany and England)
  • Trumodel (U.S.A.)
  • Vogue (Melton Mowbray, England)
  • Wisdom / Sagesse (China)

Metalcraft Construction Sets

During the late 1920's and early 1930's, the Metalcraft Corporation of St. Louis, Missouri was producing a line of unique metal construction sets. They are probably best known for their airplane sets based on Charles Lindberg's Spirit of St. Louis. But, fans of A.C. Gilbert's Erector will appreciate what may be their most impressive sets, those based on famous airships of the period.

At least four of these "Zeppelin" sets were produced. The largest was the #880 (shown below), which first appeared in 1928. It was based on the famous Graf Zeppelin, designed by Dr. Hugo Eckener, Friedrichshafen, Germany, in 1928. The model was made from tinned sheet steel, and measured an impressive 27 x 5½ x 7 inches (68.6 x 14.0 x 17.8 cm). In later years, the #880 reappeared as the #962. Two smaller sets were also produced, the #960 and #961 (shown below).