Parting out an early 1970s Gitane Grand Sport De Luxe today and noticed the handlebar plugs on it. I've added a shot of a pair of nos plugs for comparison.
Mongoose Timeline, explaining the Service Cycle Bicycle Company above:
Skip Hess started BMX Products, Inc. out of his home in Simi Valley, California in September 1974 with his first product being the famous Motomag One wheel.
Mongoose was sold to American Group in 1985 and marketed by their Service Cycle subsidiary.
Brunswick sold Mongoose to Pacific Cycle in 2000 and Pacific Cycle was bought by Montreal-based Dorel Industries in 2004. As of 2018, Mongoose models are available through Pacific Cycle in Madison, Wisconsin.[2] On 11 October 2021 Pon Holdings, headquartered in Amsterdam, the Netherlands announced that they acquired US-based bike company Dorel Sports. By combining Pon.Bike and Dorel Sports, a leading bicycle company in the world will be created, with a combined revenue of around 2.5 billion euro.