Meccano Manuals 1908 - 1981
Bayko was originally produced from 1933 by Plimpton Engineering. Meccano Ltd took over Bayko in 1959. You could make models of houses and buildings. For Plimpton era manuals see the 'Other Constructional Systems' section of my website
Below there are various manuals/leafets which can be downloaded by clicking on the appropriate image.