Maker | Inventory | ICN | Date | Type | Place | |
---|---|---|---|---|---|---|
W. Watson & Sons | 21423 | 1000000 | 1929 | Planispheric | London | View |
W. Watson & Sons | 58805 | 1000000 | 1925 | Planispheric | London | View |
W. Watson & Sons | 27786 | 1000000 | 1925 | Planispheric, Modern plastic | London | View |