False brethren

The books below seem identical, but they are not; sometimes the difference is only due to tiny details.

FF-001
approx. 1972	approx. 1973	approx. 1974	approx. 1978
approx. 1990
FF-002
1981	1990	2006
FF-003
1998	2004
FF-004
2002	2002	2003
FF-005
1999	2006
FF-006
1987	1989	1992	1994
1995	1995
FF-007
1978	1982	1987	1990
1992	2002	2006	2007
2009	2014	2016	2018
2021
FF-008
1969	1971	approx. 1973	approx. 1974
approx. 1975	approx. 1975	approx. 1978	approx. 1980
approx. 1988	approx. 1988
FF-009
2001	2002	2006	2009
2009
FF-010
1998	2009	2010
FF-011
1995	1995
FF-012
2005	2010
FF-013
2002	2002
FF-014
2004	2005	2007	2014
2015	2019	2019	2021
FF-015
2001	2005	2009	2016
FF-016
2002	2002	2002	2008
2009
FF-017
1971	1982	approx. 2003
FF-018
2005	2008
FF-019
1973	1973	1973
FF-020
2001	2001
FF-021
approx. 1958	1960	1962
FF-022
1999	2003	2007
FF-023
1993	1995	1995	2014
FF-024
1983	1986
FF-025
2007	2009
FF-026
2004	2005
FF-027
2000	2000	2002	2004
FF-028
2002	2004	2007	2009
2011	2012	2015
FF-029
approx. 1978	approx. 1981
FF-030
approx. 2002	approx. 2007	approx. 2007	approx. 2008
FF-031
1997	1997
FF-032
2000	2007
FF-033
1997	2000
FF-034
1997	1997
FF-035
1971	1972	1977	1978
1980	1982	1984	1985
1991	1995
FF-036
1998	1998	2000
FF-037
1988	approx. 1988
FF-038
2000	2002
FF-039
approx. 1988	approx. 1990
FF-040
2001	2003	2009
FF-041
2001	2001
FF-042
2000	2001	2003	2005
2008	2012	2012	2016
FF-043
1973	1976	1979	1982
1985
FF-044
2002	2003
FF-045
1958	1960
FF-046
1986	1989	1992
FF-047
approx. 1985	approx. 1985	approx. 1985	approx. 1985
FF-048
approx. 1964	1965	1967	approx. 1980
FF-049
2008	2009	2012	2013
FF-050
2001	2001
FF-051
1998	1998
FF-052
1994	1994
FF-053
approx. 2009	2011
FF-054
2004	approx. 2005
FF-055
approx. 2004	approx. 2004
FF-056
2009	2009	2019
FF-057
1963	1963	1963
FF-058
2007	2009	2009
FF-059
approx. 1985	approx. 2005	2019
FF-060
1998	2002
FF-061
1981	1981	1981
FF-062
1998	2001	2005
FF-063
2010	2010
FF-064
1999	2003
FF-065
1999	1999
FF-066
1993	1993	approx. 2010
FF-067
1975	1975	1979
FF-068
1998	1998
FF-069
1981	1989
FF-070
1990	1990	1994
FF-071
1991	1992	2010	2011
FF-072
1984	1991
FF-073
1975	1976	1991
FF-074
2003	2003
FF-075
2009	2012
FF-076
1952	approx. 1953	approx. 1958	approx. 1960
approx. 1961	approx. 1962	approx. 1964
FF-077
2001	2008	2011
FF-078
2006	2009	2013
FF-079
2003	2009	2010	2011
2011	2016	2023
FF-080
2005	2007
FF-081
1998	1998	1999	1999
2004	2004
FF-082
2010	2012
FF-083
2003	2007	2016
FF-084
2009	2009
FF-085
1961	1961
FF-086
approx. 2005	2007
FF-087
2003	2006	2010
FF-088
1983	1987	1987
FF-089
1991	1991
FF-090
1977	1983	1999
FF-091
1964	1972
FF-092
2004	2007
FF-093
2003	2010
FF-094
2010	2012
FF-095
2006	2007
FF-096
2001	2009
FF-097
1987	1990
FF-098
2000	2000
FF-099
2000	2001
FF-100
1978	1985	1986	1989
1992
FF-101
2002	2003	2009
FF-102
approx. 2002	approx. 2004
FF-103
1995	1998
FF-104
2000	2001	2004
FF-105
1982	1982
FF-106
1980	1983	1985
FF-107
2005	2008	2009	2010
2019	2021	2021	2024
2024
FF-108
2002	2002
FF-109
1989	1989
FF-110
2009	2011	2018
FF-111
2005	2005	2017
FF-112
1992	1998
FF-113
2002	2013
FF-114
2007	2013
FF-115
1999	2000
FF-116
1970	1986
FF-117
2004	approx. 2005
FF-118
1979	2001
FF-119
2011	2014	2021
FF-120
2003	2005	2009
FF-121
1994	2014
FF-122
2008	2009
FF-123
2003	2003	2014
FF-124
2007	2007
FF-125
2000	2009
FF-126
2006	2008	2021
FF-127
2004	2008	2009	2011
2011	2014	2017
FF-128
2004	2007	2007
FF-129
1998	2001	2002
FF-130
2003	2004
FF-131
2000	2008
FF-132
2006	2006
FF-133
1993	1994
FF-134
1995	1998	1999
FF-135
approx. 1998	approx. 1998
FF-136
approx. 1997	2007
FF-137
approx. 1980	approx. 1980
FF-138
2001	2003	2006	2010
2012	2016
FF-139
1967	1974
FF-140
1976	1980
FF-141
approx. 1967	approx. 1976	1978
FF-142
1996	approx. 2015
FF-143
2011	2015	2018	2021
FF-144
1996	2015
FF-145
1990	2003
FF-146
2012	2014
FF-147
2010	2014
FF-148
1996	1997	2004
FF-149
1994	1997
FF-150
2015	2016
FF-151
2014	2014
FF-152
2012	2015	2023
FF-153
2013	2016
FF-154
2010	2013
FF-155
2008	2008
FF-156
2007	2011
FF-157
2007	2013
FF-158
2004	2017
FF-159
2017	2018	2022
FF-160
2014	2015	2019
FF-161
2014	2017	2017
FF-162
2008	2008	2008	2015
2015	2015	2015	2016
2022	2022	2022	2022
FF-163
1982	1982	1990
FF-164
2015	2017
FF-165
approx. 1986	2017
FF-166
2012	2012	2012
FF-167
2014	2014	2017	2018
FF-168
2014	2017
FF-169
2003	2004	2009	2010
FF-170
2009	2011
FF-171
1998	1998
FF-172
1999	2018
FF-173
2016	2018
FF-175
2014	2019
FF-176
2015	2016
FF-177
2010	2011
FF-178
1999	2007
FF-179
2016	2017
FF-180
1999	2004	2009	2012
FF-181
2005	2009	2011	2016
FF-182
2017	2017
FF-183
2015	2020
FF-184
2015	2017
FF-185
1972	1972
FF-186
1998	1999
FF-187
2015	2015	2019
FF-188
2018	2019
FF-189
2021	2021
FF-190
1994	1999
FF-191
2000	2021
FF-192
2018	2018
FF-193
2015	2021
FF-194
approx. 1980	approx. 1980
FF-195
2016	2019	2021	2022
FF-196
2001	2003
FF-197
2020	2020
FF-198
2018	2022
FF-199
1976	1979
FF-200
2021	2022
FF-201
2018	2021
FF-202
1999	2013
FF-203
2002	2007
FF-204
2020	2022
FF-205
2016	2021
FF-206
2015	2017	2023
FF-207
2013	2015	2017
FF-208
2010	2014
FF-209
2021	2022
FF-210
1995	2001	2006
FF-211
1986	1986	1986	1986
1986	1986	1986	1986
1986	1986
FF-212
2023	2024
FF-213
2003	2003	2003	2003
FF-214
2001	2007	2015
FF-215
2000	2005	2008
FF-216
2015	2022
FF-217
2022	2024
FF-218
2008	2010
FF-219
2017	2024
FF-220
2015	2024
FF-221
1995	2021
FF-222
2017	2019
FF-223
2010	2023
FF-224
2003	2011
FF-225
2015	2019
FF-226
2015	2019
FF-227
2003	2004
FF-228
2021	2023