MikeMandaville fired this volley in
ups.com:

Any metalworking operation which can be done by machine can also be
done by hand. Is this statement true oe false?



I think it would be difficult if not impossible to do deep-drawn horn
forming by hand, except on the thinnest, softest metals.

One could use hand power to pump a hydraulic horn die, but that's
cheating, no?

One cannot do spinning without a machine.

So... false.

LLoyd