Male version of the badge.
1st variation "early badges".
Size 20 mm.
Obverse
Stylized kanji 皆 for 皆勤 - Perfect Attendance
reverse
逓信省 - Ministry of Communications
Original line drawing.
皆勤章 - Perfect Attendance Badge
男子用 - For Men
Original case.
男子用 - For man
皆勤章 - Perfect...
Size 29 x 23.5 mm.
Reverse
逓信省 - Ministry of Communications
Marked with practically unreadable 銀純 - pure silver mark.
Original case.
Case lid
二級 - 2nd class
效績章 - Efficacy/Achievement Badge
Outer case
貳 - 2nd
Made by Naigai workshop...