https://5004preparation.bigcartel.com/product/1275-a-series-59d4-type-vacuum-advance-distributor
1275 A+ Series 59D4 type Vacuum Advance Distributor | 5004 Preparation
59D4 type Vac Advance Distributor, for 1275 A+ series engine. Contact breaker points type. Manufacturer unknown, no markings. Brand new, never been fitted
a seriestypevacuumadvancedistributor