[printed letterhead]
Seeds & Derham
General Contractors
25 Maplewood Avenue
Philadelphia, Pa.
Steam and Electric Railroad
Bridge Building, Government and
Municipal Work
Enos L. Seeds
John Derham, Jr.
Subject:
[typed memorandum]
August 29th 1933
Stoneyhurst Quarries,
P.O. Box 173
Bethesda, Md.
Gentlemen:
Referring to your quotation dated Aug 26th, please advise how many square feet, of face work approximately, do you estimate a ton of your stone will lay. The stone to be 6" x 9" in depth.
Very truly yours,
[handwritten signature]Seeds & Derham
SEEDS & DERHAM
[handwritten response]
Masons claim 1 1/2 tons of our rock will lay 25 cu feet of 12 in wall and using a 6 in & 9 in depth it will lay 30 or 32 cu ft. 1 ton will lay 15 to 17 cu ft of wall 12 in. and about 20 cu ft using a 6 x 9 course.