Blast-off bronze is one of the colors in the special set of metallic Crayola crayons called Metallic FX, the colors of which were formulated by Crayola in 2001.
Crayola Metallic FX crayons. Blast-off bronze is the 5th crayon from the right.
The colour displayed in the colour box above matches the colour called bronze, in the 1930 book by Maerz and Paul, A Dictionary of Color, New York: 1930 McGraw-Hill; the colour bronze is displayed on page 51, Plate 14, Colour Sample L9.