BL BL Lacertae object BL Herculis Blume Bl.502 A Man Who Defies the World of BL BL Boötis BL Telescopii BL 12-inch howitzer BL 6-inch gun Mk XIX BL Lac BL Lacerta BL 4.5-inch medium field gun BL 15-pounder gun BL 10-pounder mountain gun BL 6-inch Mk XIII – XVIII naval gun BL 8-inch howitzer BL 4-inch Mk VII naval gun BL 4-inch Mk I–VI naval gun List of BL dramas BL Crucis BL 12-inch Mk XI – XII naval gun BL 5.5-inch medium gun BL Lacertae BL 4.7-inch 45-calibre naval gun BL 4-inch Mk VIII naval gun BL 6-inch Mk VII naval gun BL 8-inch howitzer Mk I – V BL 14-inch Mk VII naval gun BL 6-inch Mk XXIII naval gun BL 4-inch Mk IX naval gun …

Australian National BL class BL 5-inch howitzer BL 5-inch gun Mk I – V BL 12-pounder 6 cwt gun BL 6-inch Mk II–VI naval gun BL postcode area BL 2.75-inch mountain gun BL 12-inch Mk I – VII naval gun BL 60-pounder gun BL 15-inch howitzer BL 12-inch railway howitzer BL 7.2-inch howitzer BL 8-inch Mk I – VII naval gun .bl BL Herculis variable BL 9.2-inch Mk I – VII naval gun BL 16-inch Mk I naval gun BL 18-inch railway howitzer BL 13.5-inch Mk V naval gun BL 6-inch 80-pounder gun BL

7.5-inch Mk II – V naval gun BL Metamorphosis BL 12-inch railway gun BL 6-inch Mk XXII naval gun BL 9.2-inch Mk IX – X naval gun BL 5.5-inch Mk I naval gun BL 10-inch Mk I – IV naval gun Ordnance BL 12-pounder 7 cwt Geely BL BL 15-inch Mk I naval gun BL 6-inch Mk XII naval gun BL 7.5-inch naval howitzer BL 6-inch 26 cwt howitzer BL 7.5-inch Mk VI naval gun BL 9.2-inch howitzer BL 9.2-inch Mk VIII naval gun BL O-series engine BL 5.4-inch howitzer BL Publishing BL 6-inch Mk XI naval gun BL 6-inch 30 cwt howitzer Boys' love BL 8-inch howitzer Mk VI – VIII BL 8-inch Mk VIII naval gun BL (logic) BL 7.5-inch Mk I naval gun BL 9.2-inch Mk XI naval gun BL R-series engine BL 12-inch Mk X naval gun BL 6-inch gun Mk V T