I looked at her in some surprise. Seeing the Garnet week in, week out, always calm and unruffled and efficient we scarcely thought of her as a woman but rather as one of ourselves. I don't suppose she was a day more than twenty-five or twenty-six, but she was so self-assured that I imagine it made her seem older than she really was. And when she took off the hideous horn-rimmed spectacles she invariably wore in the office, she was really not bad-looking.
Valentine Williams (1932)
The Gold Comfit Box (A Clubfoot Story)
(Available for free at manybooks)
This is one of my favourite stereotypes:
the plain secretary who removes her glasses
and becomes a dazzling adventuress.