Some of my dividers.
Sara Bryant of Big Jump Press wrote a breathlessly enthusiastic ode to dividers last month on her blog. Apart from extolling the virtues of comparison measurement, she wondered aloud if she perhaps was becoming a hoarder beause she has six pairs, and if it might be a problem.
My dear Sara, rest assured, you do not have a problem.
My favorite dividers, a 19th century Stevens & Co. Note the unusual, and extremely elegant position of the adjustment screw above the pivot point.