h2g2 The Hitchhiker's Guide to the Galaxy: Earth Edition

Hiya Mina, I thought I'd pop over and answer your question directly I'm afraid hairbrushes in general don't fetch a lot of money. An unused silver or enamel backed, antique set (with a comb) would be most valuable, or an antique (over 100 years because of the law against importing) ivory backed one could be worth a bit. There is a section on one of the web auction sites, under collectables/grooming that would give you some idea as to price you could expect. I can't give you any more help I'm afraid 'cos I collect things I can wear in my hair.

Thanks very much for letting me have a general idea! It's just an old wooden brush, so looks like it's not valuable, other than sentimental.