THE MATHIESON ALKALI WorKS (nc) . MANUFACTURERS OF CHEMICALS EXECUTIVE OFFICES 60 EAST 42npo STREET NEW YORK, N. Y. REG.-U..S- PAT. OFF: FOR CUSTOMER'S USE ONLY REGISTER NO. VOUCHER NO. F. 0. B. CHECKED TERMS APPROVED PRICE APPROVED CUSTOMER'S creo SEPT 30 1938 ORDER NO. creoit Rd 7639 CREDIT UNIVERSITY OF KANSAS TO LAWRENCE KANSAS SHIPPED TO ORIGINAL INVOICE NO. ORIGINAL INVOICE DATE CALCULATIONS CHECKED TRANSPORTATION FREIGHT BILL NO. AMOUNT MATERIAL RECEIVED 19 DATE SIGNATURE SATISFACTORY AND APPROVED TITLE ADJUSTMENTS ACCOUNTING DISTRIBUTION . AUDITED FINAL. APPROVAL. DESCRIPTION POUNDS PRICE AMOUNT © TOTAL 1 105# CHLORINE CYL 25995 5/22/35 MEMO PAT. NO. 1,797,775 @