3 lever mortice sash lock
| Brand | Union |
| Stockcode | 3891 |
| Backset | 57mm |
| Barcode | 5011802005709 |
| Case Finish | Silver |
| Case Height | 108mm |
| Case Depth | 75mm |
| Centres | 57mm |
| Finish | Polished Lacquered Brass |
| Forend Length | 152mm |
| Forend Width | 25mm |
| Handed | Reversible |
| Keyed | Keyed To Differ |
| Keys Supplied | 2 |
| Mechanism | 3 Lever |
| Pack Quantity | 1 |
| Packaging | Bagged |
| Manufacturer Reference | 2277 |
