Is Lenin banner hand embroidered or machine embroidered?

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The embroidery is done with what is called a chain stitch.
Definitely not done by hand with a needle and thread.
It's done on a machine that utilizes the hand guided hoop. No computerized embroidery here. The knee is used to hit a sort of clutch to allow movement of the hoop. Usually the design is applied on the cloth via a paper stencil that has been pounced with a tool. Then a bag of chalk is pounded over the
pounced design. When the stencil is removed the design is outlined on the fabric. Sort of the same process Michaelangelo used on the damp plaster of the Sistine Chapel.

Thanks for the info. BTW, how much time does it usually take to make such a flag? One hour or one day?