Can you help me find out what this is worth
They may handle stuff other than books, and if so they can give you a range of prices. www.ebay.com
should also be able to help, if you make like you're planning to put it up for either auction or immediate sale.
I remember my grandmother had one of these and it used to fascinate me how her cook/laundress ironed shirts with it, and not once catching her fingers.