Primitive manufacturing know-how at its finest. If you've ever wondered how ancient, pre-industrial churches were able to have gigantic bells with perfect rotational symmetry made for them, here's your answer:
Create a Core77 Account
Already have an account? Sign In
By creating a Core77 account you confirm that you accept the Terms of Use
Please enter your email and we will send an email to reset your password.
Comments
So how is the outside of the mold made?