MSA Safety Inc — Director's Dealing 2012

May 15, 2012

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: MINE SAFETY APPLIANCES CO (MSA)
CIK: 0000066570
Period of Report: 2012-05-11

Reporting Person: RYAN JOHN T III (Director, Chairman, 10% Owner)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2012-05-11	Common Stock, no par value	A	1217.0000	$0.0000	Acquired	1122561.0000	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2012-05-11	Non-statutory Stock Option	$42.5400	A	2675.0000	Acquired	2022-05-11	Common Stock, no par value (2675.0000)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock, no par value	354731.0000	Indirect
Common Stock, no par value	159638.0000	Indirect
Common Stock, no par value	2325463.0000	Indirect

Footnotes

F1: I disclaim beneficial ownership of these shares.

F2: Shares held in trusts of which I am not a trustee and in which members of my immediate family are beneficiaries. I disclaim beneficial ownership of these shares.

F3: Shares held in trusts of which I am a trustee and in which I and members of my immediate family are among the beneficiaries.