Weems & Plath Dampened Deluxe Quartz Barograph, 410-D Chart Weights & Magnifiers Navy Brass Clock Chart Weight

Navy Brass Clock Chart Weight - Not For Self But For Country

Switch replacement for all rain collectors

Specifications of the Portland Weather Station

Wash hands after handling

Weems & Plath Dampened Deluxe Quartz Barograph, 410-D Chart Weights & Magnifiers Navy Brass Clock Chart WeightWeems & Plath Dampened Deluxe Quartz Barograph Keep precise records of barometric pressure readings with this extraordinary German made Dampened Deluxe Quartz Barograph. This mechanical barograph with eight round diaphragms measures variation in the air pressure and transfers the information very precisely through a system of mechanical levers to the writing arm. The battery operated quartz movement rotates the solid brass drum once a week, requires