MSA Safety Inc — Director's Dealing 2012

May 11, 2012

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: MINE SAFETY APPLIANCES CO (MSA)
CIK: 0000066570
Period of Report: 2012-05-09

Reporting Person: SHAW L EDWARD JR (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2012-05-09	Common Stock, no par value	S	4537	$43.5363	Disposed	270085	Indirect
2012-05-09	Common Stock, no par value	S	14463	$42.832	Disposed	255622	Indirect
2012-05-10	Common Stock, no par value	S	8807	$43.1102	Disposed	246815	Indirect

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock, no par value	355866	Direct
Common Stock, no par value	397547	Indirect
Common Stock, no par value	135440	Indirect

Footnotes

F1: Share price on this transaction ranged from $43.3500 to $43.6800.

F2: Share price on this transaction ranged from $42.3300 to $43.3200.

F3: Share price on this transaction ranged from $43.0000 to $43.3500.