Q. An article on residential concrete formwork in your November 1985 issue (page 921) shows predrilled, unframed plywood panels. Could you please give me the manufacturer's name and address?

A. The manufacturer of the forms pictured is no longer in business. However, we know of at least three manufacturers of similar systems. They are:

Gates & Sons, Inc. Box 9509
Denver, Colorado 80209

Nap's Concrete Forming System Box 862
Auburn, Washington 98071

Simplex Forms System Co. 2859 North Natoma
Chicago, Illinois 60634