THE MATHIESON ALKALI Works (Inc.) FOR CUSTOMER'S USE ONLY REGISTER NO. VOUCHER NO. MANUFACTURERS OF CHEMICALS EXECUTIVE OFFICES F. 0. B. CHECKED ; 60 EAST 42np STREET REG. U. S. PAT. OFF. NEW YORK, N.Y. CUSTOMER'S ORDER NO. CREDIT NO. & 592 CREDIT PATEQCT 18 1938 TRANSPORTATION CREDIT UN | VERS ; TY OF KANSAS FREIGHT BILL NO. AMOUNT © LAWRENCE KANSAS MATERIAL RECEIVED 19 DATE SIGNATURE TITLE SATISFACTORY AND APPROVED TERMS APPROVED PRICE APPROVED CALCULATIONS CHECKED ADJUSTMENTS SHIPPED TO ACCOUNTING DISTRIBUTION ORIGINAL INVOICE NO. RE G4 Q 6 AUDITED FINAL APPROVAL ORIGINAL INVOICE DATE DESCRIPTION POUNDS PRICE AMOUNT TOTAL TO CANCEL OUR INVOICE E 3099 OF 9-30-38 COVERING OVERTIME RENTAL 20 00 PAT. NO, 1,797,775 @®