This barograph owned for 34 years I share here - my table clock with benefits! Manufacturer recently confessed sadly to not selling one during the last 20 years but still provides the consumables. I allow each chart to cover two weeks to save paper! PR is about 9 days, accuracy the thickness of a line. I keep on UTC like the Met Office, which is fine for UK but not so for USA, HK etc. I am sure I'm not alone here - weekly winding and inking, chart changing and watching the lifeblood of the ever changing passing air! The trace for my home during last two weeks speaks for itself. The UK great storm of 1987 chart in archive was interesting history!