Lambrecht Replacement Chart Strips for Sunshine Autographs 1604 und 1603

Lambrecht Replacement Chart Strips for Sunshine Autographs according to Campbel Stockes are offered. The paper strip has an hourly scale printed on it, so that the time of the sunshine can be read off the burnt-in track. Since the height of the sun varies during the course of the year, different registration strips are clamped in different positions depending on the season: the longest strip in the lowest guide trough for summer, the shortest at the top for winter. After sunset, the strip is changed every day.
1603D3@0...40°northern and southern latitude,00.16030.000000,34.16030.001000
1604D3@25...60°northern and southern latitude,00.16040.000000,,34.16040.003000