There were two series of newsletters:
SERIES ONE
No 1 - No 68: Jun 1933-Nov 1939;
SERIES TWO
No 1 - No 10: Feb 1940-Dec 1940.
SERIES ONE
No newsletter was issued for the following months:
1934 - Mar, Apr, Aug;
1935 - Feb, Mar, Aug, Sep, Oct, Dec
1936 - Jan-Aug, Nov;
1937 - Jan, Feb, Jun;
1938 - Apr, Aug, Oct;
1939 - Jun, Jul, Aug, Oct, Dec.
Additional newsletters were issued per month as follows:
1937 - 2 x May; 2x Sep; 3x Oct; 2x Nov; 2x Dec;
1938 - 2x Mar; 2x Jul; 3x Sep; 2x Nov; 5x Dec [There is also a No.53A].
1939 - 2x Jan; 3x Feb; 2x Mar; 4x Apr; 4x May [No.66 was assigned to 2 different issues].
Un-numbered issues were dated:
1938 - Nov, Dec;
1939 - 2x Apr; May.
Manuscript drafts survive for No. 33 & No. 37 [1933-1938 series].
SERIES TWO
No newsletter was issued for the following months:
1940 - Jan, May, Aug, Sep.
Additional newsletters were issued per month as follows:
1940 - 3x Feb, 2x Jul, 4x Oct, 2x Dec.
Un-numbered issues were dated:
1940- Jul, Dec. Jun entitled 'billeting of civil servants', Oct entitled 'to branch treasurers in arrears' and 'winter attendance arrangements'.