Publications for 05/1880

• Hemingray Glass Company
• Edward D. Swasey
• Bellaire Bulletin states National Glass Works has an order for 200,000 insulators
• Mr. and Mrs. Bradford Shinkle
• Claude Matthews
• Henry Clay Timberlake
• Englishman manufactures insulators
• National Flint and Lime Glass Association - 1880 Convention, Philadelphia, Pennsylvania