Meg,

We had several used down to the nubbin, at Indian Industrial Schools:

Van Wormer, Stephen et al
2005  Remember the Little Children:  Archaeological Excavations at the site 
of Casa de Aguirre and Saint Anthony's Indian School, Old Town San Diego. 
Gallegos & Associates, Carlsbad, California.  Submitted to City of San Diego 
Department of Planning and Land Use.

Copies can be obtained from: San Diego State University South Coastal 
Information Center.

I did considerable background in Sears, Roebuck, etc. in my descriptive 
section of school supplies.

Good luck,
Susan
-----Original Message----- 
From: Meg Gorsline
Sent: Tuesday, April 19, 2016 10:09 AM
To: [log in to unmask]
Subject: Slate pencils

Good afternoon,

I'm trying to gather some information about slate pencils. I've come across
a few publications about writing slates (including Davies 2005 and Swords
2008) and I'm wondering if folks have any additional suggestions for
literature about slate pencils?
There are a few slate pencils in a 19th century northeast U.S. domestic
collection I'm analyzing, and I am curious to hear what others have made of
any slate pencils they've recovered. Thanks in advance for any references,
information, or insight you may have to share!

Best,
Meg Gorsline
Doctoral Candidate
The Graduate Center, CUNY
New York, NY