As indicated by these black and white photos taken in 1956, quarrying was labour intensive in earlier times. (Lam Tei Quarry is not pictured.)

As indicated by these black and white photos taken in 1956, quarrying was labour intensive in earlier times. (Lam Tei Quarry is not pictured.)

As indicated by these black and white photos taken in 1956, quarrying was labour intensive in earlier times. (Lam Tei Quarry is not pictured.)

As indicated by these black and white photos taken in 1956, quarrying was labour intensive in earlier times. (Lam Tei Quarry is not pictured.)