Probably 1920s -30s Signet Gold Filled (most likely 14K gold Filled but not marked) Mechanical Pencil.  What is interesting about this one is the it has engraved that it was "Sold Only in Recall Stores".  Great vintage advertising as well as interest for those who collect mechanical pencils and those that collect vintage pharmacy items.

The best part :  It writes and draws lead down.  Its older so you have to draw the lead up first (twist it and then push it in) but then it holds and allows you to write.  Extra lead inside the eraser cap at top.  Eraser has seen better days and is hard as a rock but for being potentially close to 100 years old, you can forgive that.  A series of small dings near the clip but again, based on age, not a deal breaker. 

Will ship USPS with tracking to winning buyer.