Drew, that's really good stuff. I have the Holland Barreled gun offered in Aug. 1905. In 1906 Baker called this gun the L Grade. The L Grade continued through 1908 , finally offered at $142. I have seen and owned one L Grade with Whitworth barrels.
In Feb. of 1903 Baker offered the Special Paragon with Whitworth barrels at $200 and up. In August of that year, they called the gun the Special Whitworth and that name continued until at least June of 1904. By Nov. of 1904 this gun was named the De Luxe.
In Feb. of 1903 the Special Paragon with Krupp barrels was offered at $75 and this continued through June 1904. After June of 1904 this gun became the Baker Krupp, also at $75. This gun continued through Aug. 1905 at least. By Feb. of 1906 this gun was called the N Trap at $75. The N Grade seems to have been made only in 1906.
One wonders why the Baker Company had such a confusing time with the model names. Only about 1100 of these higher grades were made.