T-62の、ものすごく詳しい解説ページ
https://thesovietarmourblog.blogspot.com/2015/12/t-62.html
砲塔前面の○窓は砲手用単眼照準器
https://3.bp.blogspot.com/-hR1kC469EVA/VlAw2uGnoPI/AAAAAAAAEMs/Ja5BgAJD6gM/s1600/t-62%2Btsh2b-41u%2Bsight%2Baperture.jpg