Hello Everyone!

I was curious if someone could direct me to information about the
history of insect pins.  I'm curious about when they first became
manufactured specifically for Entomologists, who might have been the
manufacturer, and the initial costs.

In short, I'm recurrating a series of specimens that were collected in
the USA, in the 1930's.  These were collected during the great
depression, and it seems like there was some improvisation in the pins
that were used.  I'm curious about where these fit in the scheme of
financial difficulties, available manufacturing, and who might have
redirected their manufacturing to fill the niche.

All the best!
Andy