Normanby Park 1978 – Rolling Mills

Rolling Mills

The names on the side – Sack, Morgan and Lamberton – are all manufacturers of rolling mills. I’m guessing that the mug is commemorating the installation of the new Sack mill, in 1977, and that there had previously been Morgan and Lamberton mills installed. Can any one confirm?

1978 NP F1 1978 NP R1 1978 NP S1