1923 07 08 09 10 11 12
1924 01 02 03 04 05 06 07 08 09 10 11 12
1925 01 02 03 04 05 SP 06 07 08 09 10 11 12
1926 01 02 03 04 05 06 07 08 09 10 11 12
1927 01 SP 02 03 04 05 06 07 SP 10 11 12
1928 01 02 03 04 05 06 07 08 09 10 11 12
1929 01 02 03 04 05 06 07 08 09 10 11
Each row contains monthly publications for the listed year:

For example: 01 = January paper ... 06 = June paper ... SP = Special etc.