Serial Numbers on Surviving Budding Mowers
Currently there are only six lawnmowers known in existence made at The Phoenix Ironworks at Thrupp. These are either the original Budding's Patent design, which ran from 1830-51, the John Ferrabee Registered Improvement No 3074 design with front castors, introduced by early 1852, or the last "Improved" machine 8043 which was made after James Ferrabee left control of The Phoenix Ironworks and moved his manufacturing base to Port Mill, Brimscombe.
All of these machines, apart from the recently-discovered miniature model, have a unique serial number.
| Type and Serial Number | Location of Serial Number (as viewed from controls) |
| Budding Patent, Miniature/Model | Believed to be a salesmans' model, not numbered. |
| Budding's Patent, No 1623 | Cast in relief on both sides of the handles/frame casting. |
| Budding's Patent, No 3157 | Cast in relief on both sides of the handles/frame casting. |
| Ferrabee Improved, No 7508 | Cast in relief on right-hand frame side. |
| Ferrabee Improved, No 7638 | Cast in relief on right-hand frame side. |
| Phoenix Iron Works Company, No 8043 | Cast in relief on left-hand frame side. |