105 K/13 was the original French Gun, 105 K/10 was the 107mm Russian Gun rebarrelled to 105mm, while 105 K/29 were Polish 105 mm wz.
105 K/13 var den oprindelige franske kanon, 105 K/10 var den russiske 107 mm kanon, som blev ændret til 105 mm, mens 105 K/29 var moderniserede polske Armata 105 mm wz.