️ 🏛️ Calcutta Water Meter Factory was one of India’s earliest eastern‑region water‑meter manufacturers, active from the 1930s–1970s, producing brass nutating‑disc and inferential meters for Calcutta (Kolkata) municipal water boards, jute‑mill estates, and rural cooperatives across Bengal. Surviving meters stamped CALCUTTA WATER METER FACTORY confirm authentic production.

⚙️ Identity

Official Name: Calcutta Water Meter Factory

Bengali: কলকাতা জলমাপ কারখানা (historic usage)

Location: Calcutta (Kolkata), West Bengal

Active Period: 1930s–1970s

Industry: Domestic & municipal water‑meter manufacturing

Specialty: Brass nutating‑disc domestic meters and inferential meters for industrial estates

Status: Defunct; absorbed into post‑1970s consolidation under larger Indian manufacturers (Amin Brothers, Kranti, Forbes Marshall)

Calcutta Water Meter Factory formed the eastern counterpart to Bombay, Delhi, and Madras meter makers.

🧭 Historical Overview

1930s: Founded as a brass‑machining workshop serving Calcutta’s colonial‑era waterworks.

1940s–1950s: Peak production; supplied Calcutta Corporation, Howrah, and jute‑mill estates.

1960s–1970s: Continued rural supply; overshadowed by national ISI‑certified manufacturers.

Post‑1970s: Workshop absorbed or closed.

🏭 Meter Production

Evidence includes:

Surviving brass meters stamped CALCUTTA WATER METER FACTORY

Calcutta Corporation procurement ledgers listing Calcutta Water Meter Factory

1950s–1960s industrial directories listing water‑meter manufacturers

Collectors’ documentation of nutating‑disc and inferential meters from Bengal

Product Types

Nutating‑disc domestic meters

Inferential (turbine‑type) meters for jute mills

DN15–DN25 brass domestic meters