What is Skinn & Sheer in the Ambrose Bierce fable: The Rainmaker?

In the tale of Ambrose Bierce – The Rainmaker it is said the following:

hat is a pretty good joke," said the Reporter, laughing as well as he could in the strangling rain – "a mule driver’s prayer answered!"

And the response is this:

"Child of levity and scoffing," replied the other; "you err again, misled by these humble habiliments. I am the Rev. Ezekiel Thrifft, a minister of the gospel, now in the service of the great manufacturing firm of Skinn & Sheer. They make balloons, kites, dynamite bombs, and electrical apparatus."

I do not know if Skinn or Sheer has an individual meaning as well as mixed up together but I understand that sometimes in english a family company is named Arthur&Mark for example but I do not what has in common this beauty products with the fabrication of Dynamite.

So If you know or can help me out with that word I would pretty grateful.

Thanks!