Here is a CATALOG/sales brochure for "VELUX ROOF WINDOWS The Living Attic - A beautiful new upstairs world", published by VELUX AMERICA INC, 1981.
Features GGL series, GGL1-9
Softcover, very good condition, light edge wear and rubbing, text is clean, complete, unmarked, 23 pp. M138
Catalog offered for collectible/reference purposes only....
Shipping is by Media Mail with 1-2 week delivery time. AK, HI, and Canada shipping is Priority Mail.