Wolseley WD and WLB Petrol tap.
Equivalent to Wolseley part number WD104
1/8 BSP thread on the tank side with an integral filter gauze. Supplied complete with a 1/4 BSP nut and solderable pipe nipple.
Push on the hexagonal side to turn the tap on and push on the round / knurled side to turn off.
Chrome plated finish to prevent corrosion and maintain a nice appearance.