1/48 Supermarine Walrus Mk. I
Up until Airfix came with their 1/48th scale Walrus, Classic Airframes' was the best option in that scale. The latter, a limited run kit is work intensive by its nature. Moreover, it is a biplane with complex wing parts assembly and rigging on top. The additional resin parts are mostly for the unseen interior and complicate the building process.
The Airfix Walrus is superior in every aspect and even has the wing fold option. Yet, it is a biplane model and the building process is far from a walk in the park.
I built the Classic Airframes model long before Airfix conceived their version. Having completed the first kit, I could not resist the wing fold option.