MINE SAFETY APPLIANCES CO

CUSIP: 602720104 Class: COMMON STOCK

COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS's Holding History (CIK: 0001083190)

Note: Option positions (PUT/CALL) are excluded.

Q4 2013
Shares 4,436 Value ($000) $227 Avg Close — Range —
Q3 2013
Shares 4,484 Value ($000) $231 Avg Close — Range —
Q2 2013
Shares 4,440 Value ($000) $207 Avg Close — Range —