Reading through some of the booklets in the packet the ATF sent me with my C&R packet, Publication 5300.11, page 43:
SECTION IIIA: Weapons Removed From The NFA As Collector's Items And Removed From the GCA As Antiques.
The following firearms were removed from the NFA as collector's items and classified as Curios and Relics under 18 U.S.C. Chapter 44. However, because they are antiques as defined in Chapter 44, they should not have been classified as Curious and Relics. Because they are no longer NFA weapons and are antiques under Chapter 44, they are not subject to GCA provisions.
[list entries]
French, model 1897 75mm breechloading cannon of French manufacture, mfd. in or before 1898.
Oh, REALLY? A French 75? Granted that's only one or two years of production, and probably unobtainium... is the ATF engaging in some kind of subtle Men In Black humor, or what?
SECTION IIIA: Weapons Removed From The NFA As Collector's Items And Removed From the GCA As Antiques.
The following firearms were removed from the NFA as collector's items and classified as Curios and Relics under 18 U.S.C. Chapter 44. However, because they are antiques as defined in Chapter 44, they should not have been classified as Curious and Relics. Because they are no longer NFA weapons and are antiques under Chapter 44, they are not subject to GCA provisions.
[list entries]
French, model 1897 75mm breechloading cannon of French manufacture, mfd. in or before 1898.
Oh, REALLY? A French 75? Granted that's only one or two years of production, and probably unobtainium... is the ATF engaging in some kind of subtle Men In Black humor, or what?