AGS 676 - No 1 Drain Cock, plated brass AGS 676 - No 1 Drain Cock, plated brass
This is for a flexible outlet pipe size of about 3/8" bore (for petrol tanks perhaps). The thread is ¼" BSP, and there is a safety pin to hold it shut. This became obsolete in the early ‘30’s so to find unused is a great rarity. Very few left now.