A brochure found inside said that binders cost $4.00. The cost of each issue is unclear.
So far identification of country of publication has not been made.
Pictures of Australian trains, such as a NSW V-set, and dual gauge in WA suggests a publishing date a little after 1968.
The pages seem to be foolscap size rather than A4.
An earlier bound volume of weekly booklets that was only Black & White, may have been from the 1930s.