New car models are often brought out early to get a head start on the introduction. The 70 Maverick was introduced in April 1969. It was billed as the first 70s car at 60s prices.
By the way there are no "69 1/2" Mavericks!
Hmmmm.... maybe they were titled as 70 Mavericks, I can't remember, but my wife's first car was a called a 69 Maverick by the Ford dealer, and by the parts guys, every time we went to get parts at the Ford dealer.. It had the ignition on the dash, instead of the steering column, as well as other trim differences.
This from a Maverick forum:
Maverick & Comet Year to Year Timeline
April 17, 1969. Maverick introduced to the world.
New "Maverick" colors added, such as "Thanks Vermillion."
Suspension upgraded, bigger brakes & spindles.
Ignition moves from dash to column.
Early 1970 Mavericks, aka 69.5 Mavericks, were based on the 69 Ford Falcon. They used Falcon spindles, axles, and brakes. This proved to be very light-duty, and after dealers had problems aligning the early Mavericks, the suspension was redesigned and "beefed up" for the rest of 1970 and beyond.