Remark: The following solution has been found 
by George Lasry

The explanations about his solution are 
described in the following article:

"Ciphertext-only cryptanalysis of Hagelin M-209 
pins and lugs",
by George Lasry, Nils Kopal & Arno Wacker, 
Cryptologia, Published online: 06 Oct 2015.
http://www.tandfonline.com/
doi/abs/10.1080/01611194.2015.1028683

Message 60: External Key: YQRKKD

DECIPHERING IS BOTH A SCIENCE AND AN ART STOP 
IT IS A SCIENCE BECAUSE CERTAIN DEFINITE LAWS 
AND PRINCIPLES HAVE BEEN ESTABLISHED WHICH 
PERTAIN TO IT SEMICOLON IT IS  ALSO AN ART 
BECAUSE OF THE LARGE PART PLAYED IN IT BY 
IMAGINATION COMMA SKILL COMMA AND EXPERIENCE 
STOP YET IT MAY BE SAID THAT IN NO OTHER 
FIELD ARE THE RULES AXD PRINCIPLES SO LITTTLE 
FOLLOWED AND SO OFTEN BROKEN SEMICOLON AND IN 
NO OTHER ART IS THE PART PLAYED BY REASONING 
AND LOGIC SO GREAT STOP IN NO OTHER SCIENCE 
COMMA NOT EVEN EXCEPTING THE SCIENCE OF 
LANGUAGE ITSELF COMMA GRAMMAR COMMA DOES THAT
 STATEMENT COMMA QUUTE  THE EXCEPTION PROVES 
THE RULE UNQUOTE APTLY SO APPLY STOP INDEED 
IT MAL BE SAID COMMA AND STILL BE WITHIN THE 
LIMITS OF THE TRUTH COMMA THAT IN DECIPHERING 
COMMA QUOTE THE RULE IS THE EXCEPTION STOP 
UNQUOTE THE FOUNDATIONS OF ANY LANGUAGE ARE 
SO UNSTABLE COMMA SO VARIABLE COMMA AND SO 
UNCERTAIN COMMA THAT ABSOLUTELYNO FIXED LAWS 
CAN BE MADE TO HOLD STOP QUOTED WITH MINOR 
CHANGES FROM RIVERBANK LABORATORIES 
PUBLICATION NUMBER ONE SEVEN


Message 61:  External Key: AAAAAA

WE CAN DISTINGUISH RATHER CLEARLY THREE KINDS 
OF COMMUNICATION WHICH ARE TO BE ENCIPHERED 
AND WHIC CONCERN THE POLITICO HYPHEN MILITARY 
AUTHORITIES STOP FIRST COMMA COMMUNICATIONS 
OF A POLITICO HYPHEN MILITARY NATURE COMMA 
THE CONTENTS OF WHICH ARE GENERALLY IMPORTANT 
AND THE SECRECY OF WICH MUST BE MAINTAINED 
FOR A CONSIDERABLE PERIOD OF TIME WHICH MAY 
BE MONTHS OR EVEN YEARS STOP SECOND COMMA 
PURELY MILITARY COMMUNICATIONS BETWEEN THE 
PRINCIPAL COMMANDS OF LARGE UNITS COMMA OF 
A PREPONDERANTLY STRATEGIC NATURE COMMA THE 
CONTENTS OF WHICH HAVE CONSIDERABLE MILITARY 
IMPORTANCE AND SHOULD BE KEPT SECRET FOR 
SEVERAL WEEKS AT LEAST STOP THIRD COMMA 
COMMUNICATIONS LARGEELY  OF  A  TACTICAL 
NATURE EXCHANGED BETWEEN THE LESSER COMMANDS 
COMMA QHE SECRECY OF WHICH IS TO BE MAINED 
FOR SEVERAL DAYS AT MOST STOP  TO THESE THREE 
KINDS OF COMMUNICATIONS WE MUST ADAPT THREE 
KINDS OF CIPHERS STOP IF THEY ARE TO BE USED 
FOR COMMUNICATIONS OF THE  FIRST CLASS COMMA 
THEY SHOULD EMPLOY ALL POSSIBLE CRYPTOGRAPHIC 
RESOURCES TO RENDER INEFFECTIVE ANY CLUES 
THE ENEMY MIGHT BE ABLE TO GATHER STOPADAPTED 
FROM SACCO QUOTE MANUAL  OF CRYPTOGRAPHY 
UNQUOTE


Message 62: External Key: CADDAB

AN EXAMINATION OF EITHER PLAIN TEXT OR CRYPTOGRAPHIC
TEXT WILL CONVINCE THE READER THAT THE OCCURRENCES 
OF THE VAROUS TEXTUAL ELEMENTS DO NOT FOLLOW A 
DEFINITE RIGOROUS MATHEMATICAL LAW STOP IN THE 
SOLUTION OF A CRYPTOGRAM THE CRYPTANALYST DEALS 
ALMOST EXCLUSIVELY WITH UNCERTAINTIES AS REGRDS THE 
RELATINSHPS OF ITS TEXTUAL ELEMENTS STOP ACCORDINGLY 
HE IS CONCERNED WITH THE QUESTION COLON WHAT IS THE 
PROBABILITY OF A CERTAIN EVENT QUERY TAKEN FROM 
KULLBACK COMMA QUOTE STADISTICAL METHODS IN 
CRYPTANALYSIS UNQUOTE


Message 63: External Key: OFJGCJ

IT IS A CURIOUS TWIST IN HUMAN PSYCHOLOGY WHICH LEADS 
PERSONS WHO HAVE ONLY THE MOST RUDIMENTARY KNOWLEDGE 
OF CRYPTOGRAPHY AND CRYPTANALYSIS COMMA BUT WHO ARE 
OTHERWISE APPARENTLY NORMAL COMMA TO SPEND MUCH MONEY 
AND LABOR IN INVENTING AND BUILDING QUOTE INDECIPHERABLE 
UNQUTE CIPHER  MACHINES STOP IT IS SELF HYPHEN EVIDENT 
THAT THE PREREQUISITE TO THE INVENTION OF AN QUOTE 
INDECIPHERABLE UNQUOTE MACHINE ORYSYSTEM IS A THOROUGH 
KNOWLEDGE OF THE SCIENCE OF CRYPTANALYTICS STOP WILLIAM 
FRIEDMAN COMMA QUOTE ELEMENTS  OF CRYPTANALYSIS 
UNQUOTETTC

The Internal Key:

_____FGH_J___NOP_R_T__WX__
_BC__FGH__K_M___QR___VX__
A_C_EFGH_JK__N_PQ______
A__DEF__IJ__M_OP__ST_
_B__E__H___L__O_QRS
A__DE___I__L_N_P_
Z
4:2:7:10:9:1
4
1-2:1
3-4:2
4-5:2
5-6:1