Early two-way brass fuel tap. This would be perfect to mount in a chassis rail.
It is quite large; the distance between the mounting holes is 2-1/16''. The lever is about 2'' long.
I can send more photos on request, and I accept Paypal.
Nickle plated brass control knob.The overall length in the closed position is 5.5''.The knob is 1'' in diameter.I can send more photos on request, and I accept PayPal.