I came across this:Gary Kennedy wrote: ↑08 Sep 2019, 14:08The British Boys anti-tank rifle was issued on the basis of one per Rifle Platoon in the standard Infantry Battalion, and one per Section in the Motor Platoon of the Motor Battalion. There were further issues throughout the Inf Bn (including one per Section of three carriers) and the Motor Bn (one per carrier in the Scout Pls). It's generally said that units of the 1940 BEF were short of much equipment, but I've never seen any figures on the likely deficits of Platoon level items such as the Boys, Bren guns and 2-in mortars. The British Army's rifle launched anti-tank grenade was the No.68 but as I understand that was introduced during 1941, so too late for the BEF.
German anti-tank rifles were to be issued three per Rifle Company, handled by a section of an NCO and six men. Actual availability is again a bit 'fuzzy' and I'm not sure there were more than a handful, if indeed any, with units by May 1940.
I'm not sure the 1940 Italian Infantry Battalion had any organic anti-tank weapons. The French Army, sadly I've not a clue...
Gary
From: The Anti-Tank Rifle, Zaloga: