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CENTRAL INTELLIGEHCE AGENCYOFFICIAL ROUTING SLIP

APPROVAL INFORMATION S1GHATUREACTION DIRECT REPLY RETURNCOHMENT PREPARATION OF REPLY DISPATCHCONCURRENCE A RECONMENDATION FILE

REMARKS: makes reference to  talephone convarsation with you on6 October and comments as follows: "The attached is forwarded for consideration of possible consultation with the manufacturers of the material, so that the source of the preparation of the tubes from this material might be ascertained". The original and one copyof this memorandum is sent to you in tha event that you may wish,to send the copy to Or

FORM NO. 30.4 SEP 1947