Eratic Milano blinker

[Frank <fca@xxxxxxxxxxxx>]

The left-rear turn signal on my '87 Milano/75 very occasionally stops
working -- I know while driving because the turn signal indicator on the
dash begins to flash at about 2 times as fast, so does the left-front
turn signal.  I first thought this was happening only on wet days but it
has happened on a few dry ones.

Any suggestions for a fix?

- -Frank (Cape Cod, MA, USA)

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