Quality TRW - as close to genuine as you can get.
This one can get a little confusing - it was used on many models. Usually used only on 4 Cylinder SWB models. Check the photos to compare to yours. So here goes:
Clutch master cylinder for all Series 2 and 2A models.
Brake master for all SWB 88" Series 2 and 2A models (excluding the early Series 2).
Brake Master Cylinder on Series 3 SWB 88" models up to 1980 - non boosted brakes.