I am also in love with the 6538. It is so beautiful. My grail. The 5510 came out the same year as the 6538 - in 1958 - and is also a big crown. In fact, some folks believe Albert Broccoli's big crown that Sean Connery wore in the films was actually a 5510. Due to this, I personally feel like it can be a good alternative as I plan out my future build. [emoji2]