Advertising material in newspaper format - that old gambit to make your message seem more authoritative...
In this case the good people of Power Pak are persuading you that their cyclemotors are unfeasibly cheap and that they don't chew up tyres as popular rumour might have it.
The brochure is undated but the Power Pak was introduced in Spring 1950 and there is a testimonial contained within stating 2 and a half years of use. The price of the Power Pak was reduced to 25 Guineas in early 1953 so it's a fair assumption that this edition of Power Pak News was published marking this price reduction.
For more information on the Power Pak check the icenicam page.
Also have a look at the nacc archive.