engineering projects
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- 50%
Build Your Own Car, Rocket, and Other Things That Go
Sold by Tammy Enz
Original price was: $5.00.$2.50Current price is: $2.50.
- 50%
The Art of the Catapult: Build Greek Ballistae, Roman Onagers, English Trebuchets, and More Ancient Artillery
Sold by William Gurstelle
Original price was: $15.00.$7.50Current price is: $7.50.