=14pxThe SM 9 my parents gave to me for Christmas in 1969 came with a cleaning kit in a gray vinyl pouch with a flap that tucked into a strap in the front; that is, one just like yours.
The vinyl pouch contained the following four items: 
     1) a taxicab yellow dusting cloth in the back of the pouch with the Olympia logo silscrened on it (just like yours);
     2) a long brush inserted in a slot on one side of the front of the pouch (just like yours);
     3) a stubbier, wider and stiff brush inserted in a slot on the opposite side of the front of the pouch (just like yours); and
     4) a semi-clear, celluloid eraser shield, inserted in the wide front pocket between the two brushes.

The pamphlet that came with my SM 9 did not mention the cleaning kit but the Operating Instructions that come with an SG 3 N do. Page 15 of those instructionsread as follows:

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MAINTENANCE

To keep the machine in good order, careful attention is essential. Every SG 3 N is
supplied with a cleaning set comprising a dusting brush, a type brush and a duster.
The machine should be dusted every morning by means of the dusting brush, for
which purpose the front cover should be removed. For thorough cleaning it is recom-
mended that the carriage be removed every now and then.

The types are brushed by means of the wire brush in the direction of the keyboard;
the front cover and keyboard may be protected by inserting a sheet of paper. If a
plastic type cleaner is used, this should be kneaded lightly before use. Never use a
pointed metal object (needle or office clip) for cleaning out clogged letters (such as o.
e, a); if necessary, a wooden spill may be used.

For occasional cleaning of the platen use only methylated spirits, never petrol as this destroys the
rubber.

After the S