Thank you for posting this! Great seeing a mechanical planimeter in operation. I want one, though I would probably never use it for anything other than marveling at its ingenuity.

Thanks

That paper is piece of history man

i dont under stand set tracing arm length

Grateful,. Easy to understand 👌🏼

Where buy mechanical planimeter

❤ Canada

Thank you sir

THANK YOU SO MUCH SIR

I don't understand sir how u measured 4.474

thank u so much sir