SEC Form 4
FORM 4

[  ] Check this box if no longer
subject to Section 16. Form 4 or Form
5 obligations may continue.
See Instruction 1(b).
 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, Section 17(a) of the Public Utility
Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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1. Name and Address of Reporting Person*
Ryan John T III
(Last)                      (First)                      (Middle)
121 Gamma Drive
(Street)
Pittsburgh,    PA   15238
(City)                      (State)                      (Zip)
2. Issuer Name
and Ticker or Trading Symbol

Mine Safety Appliances Company
MSA
3. I.R.S. Identification
    Number of Reporting
    Person, if an entity
    (voluntary)
4. Statement for
    (Month/Day/Year

04/25/2003

5. If Amendment,
    Date of Original
    (Month/Day/Year)
6. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X Director   X 10% Owner
X Officer (give title below)        Other (specify below)

Description           Chairman and CEO
7. 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. Owner-
    ship
    Form:
    Direct (D)
    or
    Indirect (I)

    (Instr. 4)
7. Nature of
     Indirect
     Beneficial
     Ownership

    (Instr. 4)
Code
V
Amount
A/D
Price
Common Stock, no par value
04/25/2003
J*
V
14
D
336,238
D
Common Stock, no par value
04/25/2003
J*
V
15
D
140,523
I
By Wife (1)
Common Stock, no par value
04/25/2003
J*
V
2,790
D
67,023
I
By Wife as Trustee (2)
Common Stock, no par value
158,052
I
As Co-Trustee (3)
Common Stock, no par value
792,963
I
As Co-Trustee (4)
Common Stock, no par value
04/25/2003
J*
V
2,819
A
152,764
I
By Partnership(5)


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. Conver-
    sion or
    Exercise
    Price of
    Deri-
    vative
    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(DE) and
    Expiration Date(ED)
    (Month/Day/Year)
7. Title and Amount of
    Underlying Securities
    (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. Owner-
ship
Form of
Deriv-
ative
Securities:
Direct (D)
or
Indirect (I)

(Instr.4) 		11. Nature of
      Indirect
      Beneficial
      Ownership
      (Instr.4)
Code
V
A
D
DE
ED
Title
Amount or Number of Shares

Explanation of Responses:

 
*Transfer to a family limited partnership.
(1) I disclaim beneficial ownership of these shares.
(2) 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.
(3) Shares held in trusts of which I am a trustee and in which I and members of my immediate family are among the beneficiaries.
(4) Shares held in a trust of which I am a trustee and in which a member of my immediate family is the beneficiary. I disclaim beneficial ownership of these shares.
(5) Shares held by a family limited partnership of which I am a general partner and the other partners include members of my immediate family. I disclaim beneficial ownership of these shares except to the extent of my pecuniary interest.
By: Date:
/s/ John T. Ryan III 04/29/2003
** Signature of Reporting Person
SEC 1474 (9-02)


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.
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