What price damaged glass? How much do heat checks, cracks and nicks reduce values--a damaged rarity or a perfect commonplace which is worth more?

Title: 
What price damaged glass? How much do heat checks, cracks and nicks reduce values--a damaged rarity or a perfect commonplace which is worth more?
Author/Artist: 
Leigh, W. Colston
Published In: 
American Collector v. 2, no. 3, July 26, 1934, p. 5, ill
Subjects: 
Bib ID: 
AI46448
Notes: 
un Collection