MSA Safety Inc — Director's Dealing 2010

Feb 25, 2010

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: MINE SAFETY APPLIANCES CO (MSA)
CIK: 0000066570
Period of Report: 2010-02-23

Reporting Person: LAMBERT WILLIAM M (Director, President and CEO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2010-02-23	Common Stock, no par value	A	13013	—	Acquired	94393	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2010-02-23	Incentive Stock Option	$24.63	A	4060	Acquired	2020-02-23	Common Stock, no par value (4060)	Direct
2010-02-23	Non-statutory Stock Option	$24.63	A	87129	Acquired	2020-02-23	Common Stock, no par value (87129)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock, no par value	40000	Indirect