Hi
In "Small arms training Vol 2, Light automatic, grenade and small arms anti-aircraft", London, 1931, page 172 (p. 314 on the paper version) ( https://vickersmg.files.wordpress.com/2017/07/ii-31.pdf ) is described a smoke grenade looking like no. 63, but higher :

It is not refered to with a number in the book but only "Grenade, 2-inch, .303-inch Rifle, Smoke"
Does someone has a better knowledge of this grenade and could share its real name (if exists), pictures and drawings ?
Cheers,
S.
In "Small arms training Vol 2, Light automatic, grenade and small arms anti-aircraft", London, 1931, page 172 (p. 314 on the paper version) ( https://vickersmg.files.wordpress.com/2017/07/ii-31.pdf ) is described a smoke grenade looking like no. 63, but higher :

It is not refered to with a number in the book but only "Grenade, 2-inch, .303-inch Rifle, Smoke"
Does someone has a better knowledge of this grenade and could share its real name (if exists), pictures and drawings ?
Cheers,
S.