Man pages matching name convert::ascii::armour in section 3pm:

Convert::ASCII::Armour.3pm.en	debian 10 / libconvert-ascii-armour-perl
Convert::ASCII::Armour.3pm.en	debian 11 / libconvert-ascii-armour-perl
Convert::ASCII::Armour.3pm.en	debian 12 / libconvert-ascii-armour-perl