|These instructions describe the construction of a John Harrison H3 Clock. This model is a very advanced model based on the Copley Clock described in Modelplan 157. The instructions assume the modeller has built the clock described in Modelplan 139 which has a similar Grasshopper Escapement, so is aimed at experienced builders used to building clocks.
This booklet consist of 36 page of detailed construction and help guide, including six pages of close-up colour photographs and parts list.
Please note these Model Plans are designed by individual Meccano modellers and may use parts not currently available. The level of instruction detail is dependent on the original modeller and varies from plan to plan. These are instructions only.