Break out your “inner nerd” and start looking for the slide rule in your thrifting adventures. These mathematical/science tools have a TREMENDOUS sell-through rate and easily sell between $25.00-$600.00. Type, condition, and make influence how much it will bring.

It will pay to do a search on Ebay under “slide rule”.  There are many different ones to become familiar with that are selling.

Finds like this can really “add” up!

Like finding out what secondhand items sell well? Read past Dooyahavwuns or follow my BOLO board on Pinterest!

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