Gilbert Erector Sets were made for decades (1913 to 1967) and in many sizes, so there is on one simple answer to your question. Since there were many small parts (to say nothing of the many screws and nuts one used to put your creations together), it is rare to find one with all of its parts. The more complete a set, and the better the condition, the more value. Sets can be had for as little as $10, and as high as $900. The $900 sets are, of course, seldom found! For many years sets were numbered from #1 to #12, then in 1956 A C Gilbert Co. went to a computerized inventory system and 5 digit numbers (example 10042, the Radar Set). The metal boxes also went from a solid color (usually red) metal case to one with color graphics depicting an assembled model. This might help you date your set.
The Erector Set was patented by the A.C. Gilbert Company in 1911 at the Erector Square factory in New Haven, CT.
Erector Set
Erector Set was created in 1911.
It's free
It's free
howw ever much you are!
The first Erector Set was manufactured in 1913. It was first introduced at the New York City Toy Fair in that year with the rather bulky name "The Erector/Structural Steel and Electro-Mechanical Builder".
Legos or an erector set
Ask your local mechanic
Elmo erector set electric football
It is worth $350.
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