Experience a piece of history with this Antique Hartmann-Kempf's Frequencymeter by Hartmann & Braun. Measuring 11 high x 9 x 6 inches, this unique instrument features a distinctive brass bezel and housing with significant tarnishing and patina, showcasing its vintage charm. The quarter-sawn oak case exhibits scratches and scuffs reflecting its age, while the paper dial has a noticeable scuff mark near '80' and age-related yellowing. Handwritten markings ('F12') on the wood add to its character. Designed by Hartmann & Braun AG, a renowned German manufacturer of measurement technology since 1882, this piece embodies a striking 'steampunk' aesthetic. While its functionality remains untested, its overall appearance is complete and visually compelling for collectors and decorators alike.