拍品 315
315
An engineer-made medallion rest with divided leadscrews for obtaining variations of size from the original through gearing and arranged for driving from a rear-mounted spiral apparatus, mounted on an adapted Holtzapffel pattern hand rest base --for 5¾in. centre height

細節
An engineer-made medallion rest with divided leadscrews for obtaining variations of size from the original through gearing and arranged for driving from a rear-mounted spiral apparatus, mounted on an adapted Holtzapffel pattern hand rest base --for 5¾in. centre height

拍品專文

Based on the Jesse Lowe principle.