What is this?

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My '68 Dart has parts missing everywhere and lines that lead to nothing, this is one of them. What is that little black foot pad located above the high-beam switch? The lines lead to nothing on the other side of the firewall and when I pump it I can hear air being forced out the other side of the tubes. My (un)educated guess is that maybe it was originally some sort of manual foot pump for washer fluid squirters? But I really have absolutely no idea. I am just trying to make sure before I permanently remove parts for real.
Thank you in advance