Bronze Age Gold from Wales

Thirteen leaflets for engines, boilers etc. manufactured by Marshall, Sons & Co. Limited, Gainsborough. Includes leaflets for portable steam engines, portable circular saw benches, steam centrifugal pumps, portable locomotive multitubular boilers, the "marshall" special dredger boiler, friction hoists, mortar mills, along with general advertisments. Black print on cream paper with b&w illustrations.