Half section of four inch double socket grade A sluice valve
Half section of four inch double socket grade A sluice valve, heavy waterworks pattern.
Half section of four inch double socket grade A sluice valve, heavy waterworks pattern, mounted on mahogany board with easel back
Half section of four inch double socket grade A sluice valve, heavy waterworks pattern.
Mahogany board with easel back, for mounting half section of four inch double socket grade A sluice valve.