SEC Form 4

FORM 4		UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940	OMB APPROVAL OMB Number: 3235-0287 Estimated average burden hours per response: 0.5
	Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

1. Name and Address of Reporting Person* ZEITLER DENNIS L (Last) (First) (Middle) P.O. BOX 426 (Street) PITTSBURGH PA 15230 (City) (State) (Zip)	2. Issuer Name and Ticker or Trading Symbol MINE SAFETY APPLIANCES CO [ MSA ]	5. Relationship of Reporting Person(s) to Issuer (Check all applicable) Director 10% Owner X Officer (give title below) Other (specify below) VP, CFO, TReasurer
	3. Date of Earliest Transaction (Month/Day/Year) 11/11/2003
	4. If Amendment, Date of Original Filed (Month/Day/Year) 11/13/2003	6. Individual or Joint/Group Filing (Check Applicable Line) X Form filed by One Reporting Person Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common(1)	11/11/2003		F		2,785	D	$60.5	12,799	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. In accordance with SEC FAQ #12 on www.sec.gov/divisions/corpfin/sec16faq.htm, this form is not re-reporting a transaction. It is soley to gain access to the online filing site and report a Power of Attorney

Remarks:

	By: Douglas K. McClaine, Attorney in Fact	11/13/2003
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

                                  POWER OF ATTORNEY

                      To Sign and File Reports under Section 16(a)
                         of the Securities Exchange Act of 1934,
                      under Rule 144 or any other Filings Required
                         Under the Federal Securities Laws
              With Respect to Securities of Mine Safety Appliances Company


                  KNOW ALL MEN BY THESE PRESENTS, that the undersigned hereby
constitutes and appoints Douglas K. McClaine or the General Counsel of Mine
Safety Appliances Company ("MSA"), Dennis L. Zeitler or the Vice
President-Finance of MSA and Nelson W. Winter, and each of them, his or her true
and lawful attorneys-in-fact and agents, with full power of substitution, for
the undersigned and in the undersigned's name, place and stead, to sign any and
all reports of the undersigned under Section 16(a) of the Securities Exchange
Act of 1934, under Rule 144 or any other filings required under the Federal
Securities Laws with respect to securities of MSA, and to file the same with the
Securities and Exchange Commission, granting unto said attorneys-in-fact and
agents, and each of them, full power and authority to do and perform each and
every act and thing requisite and necessary to be done as fully to all intents
and purposes as the undersigned might or could do in person, hereby ratifying
and confirming all that said attorneys-in-fact and agents or any of them, or
his, her or their substitute or substitutes, may lawfully do or cause to be done
by virtue hereof. The undersigned acknowledges that the foregoing
attorneys-in-fact, in serving in such capacity at the request of the
undersigned, are not assuming any of the undersigned's responsibilities to
comply with the Federal Securities Laws.

                  This Power of Attorney shall remain in effect unless and until
notice of its revocation shall have been filed by the undersigned with the
Securities and Exchange Commission.

                  IN WITNESS WHEREOF, the undersigned has executed and delivered
this Power of Attorney the date set forth below.

Date:  August 28, 2002


                           SIGNATURE: /s/D. L. Zeitler

                                                     PRINT NAME:   D. L. Zeitler