Oral Answers to Questions — Ministry of Works – in the House of Commons am 12:00 am ar 27 Ionawr 1947.
Mr. Marshall:
asked the Minister of Works if be will give an estimate of the average number of common bricks laid per day of eight hours per man in 1928, 1935 and 1946.
I regret that no reliable figures are available on which a comparison could be made.