The Colibri (Hummingbird) Gramophone is a finely engineered machine. Very heavy for it's small compact size. I have never seen these being referred to as "Junior" when first introduced. However, the paper showing "Junior" also shows a later made model. So, perhaps by that time, they were offering another model as well...??. The model shown on your website with the embossed "Colibri" leather handle is also of later production.
These Gramophones were offered in a variety of colors and finishes. The all nickel plated finish being one of the rarer to find versions.
The early produced models have an open faced Mica reproducer. Later, models came with a closed face reproducer.
A leather carrying case was available as an option. Below is one of mine (early three digit serial number) with an orange "possible" sample needle tin as found with my machine.
The company also manufactured cigarette lighters of high quality.