One of the author's Berger catalogs came with this 1917 letter from
Berger to Mr. Calvin R. Hunter of Hollidaysburg, Pennsylvania:
We hand you herewith our new Bulletin No 13 describing the
Raydiant system of Sidewalk Light Construction.
You will find particularly interesting the following:
This makes four of our series of technical bulletins you should
have in your files. The other three are No. 10, Portfolio of Blue
Prints and Specifications, No. 11, Fire Tests, No. 12, Metal
Lumber System of Pressed Steel. If any have been mislaid we can
supply you with extra copies.
Improved Lazalite Glass,|
Table of Safe Loads,
Isometric drawings and large
scale detail illustrations.
At present our engineering department is preparing three other
bulletins; one on Ribplex Reinforcing Plates, one on Metal Lath
and one on Pressed Steel Cores.
These will be sent out later, and for those who desire to keep
Berger data and bulletins together we intend to issue a special
folder for that purpose.
We hope these bulletins are proving helpful and we invite you to
call on our engineering department at any time for whatever further
cooperative assistance you desire.
Will you kindly let us know that you have received the copy of
this Sidewalk Light Bulletins, either by letter or use of the
enclosed card. Thank you.
THE BERGER MFG. CO.
Signed P. V. Stonerod
Manager Dept. T.
P.S. Kindly address answer to Dept. "T".