| Ref No | LAC/10/2/4 |
| Title | Glamorgan Ordnance Survey Maps showing tram routes |
| Description | First edition ordnance survey maps on which had been pencilled the horse tram routes in Swansea. Later amended to show additional lines and feeder pillars when electrification took place in 1900. |
| Date | late 19th century-early 20th century |
| Extent | 4 large bundles (58 maps) |
| AccessConditions | Closed due to poor condition of records |