Released under the John F. DATE: 11-14-2017 AGENCY : RECORD NUMBER : RECORD SERIES : AGENCY FILE NUMBER : ORIGINATOR : FROM: TO: TITLE : DATE: PAGES: SUBJECTS : - DOCUMENT TYPE : CLASSIFICATION : RESTRICTIONS : CURRENT STATUS : DATE OF LAST REVIEW : OPENING CRITERIA : COMMENTS : v9.1 Docld: 32315016 . Page 1 Kennedy Assassination Records Collection Act of 1997 (44 USC 2107 Hote;y. JFK Assassination System Identification Form Agency Information FBI 124-10338-10126 LA ELSUR 94-150A-223 Document Information ‘FBI KC HQ 01/22/1962 2 NICHOLAS CIVELLA (ELSUR) PAPER, TEXTUAL DOCUMENT Unclassified 1B Redact 11/20/1998 INDEFINITE . 15 Date: 4/23/201
“Keleased under the John F. Kennedy DATE: 11-14-2017 Director, FL . 1/22/62 Attention: » FRI Laboratery | 7 Electronics Section SAC, Kansas. ‘City (94-1504) UNUSUAL TECH coun INSTALLATION OF MICROPHONE SURVEILLANCE RANSAS CETY DIVISION The Bureau Will be antereated in the ingenious techniques and procedures utilized by SA GEORGE D,. ADAMS. to install a misur.at the Original Toy and Jobbing Company, 305 West Sth Street, Kansas City, Missouri. This installa~ tion was authorized by Bureau letter, dated 11/2/61, . captioned: NICHOLAS CIVELLA, alee, Anti-Racketeoring. cig! Transmitted herewith are three photostatic copies of diagrams showing method by which installation wad accomplished and one 1200 foot reel of magnetic. recording tape, recorded at 3 3/4 inches per second, an example of. the quality of intelligibility obtained ‘through thin co ! insteliation. fo : Kt was determined that installation would be made to cover office area of Store “X" (Diagram one). oe | Through development of confidential source, Store "Y" wag. ot rented under cover of business firm, to be h utélined as storage | space for merchandise. hee a Phe aren in which these steres are located is an older business section and the two are divided by a common will ef selid brick and plaster, 27 inches thick. fiivough legal access to Store "¥", the plan was te bore. through this wall at casehoa rd teved te cover the axea of the office apace in. Store "x", on closer scrutiny, after project. was begun, it was determined that there were. two chimney flues within | ‘the separating brick wall, oné at the rear and one at the front of the building (Diagran one). These were no longer in use, inasmuch as the heating plant had been converted from @ conl furnace to a gas furnace. It was found that - chimney flue "B" (Diagrams two and three) was in an. ideal lecation with respect. to the otticn area of Store "EN where coverage was desired. es a barexa §Ens. 4) (RE) | 7 se Rensas . ae “ SHS: djn/B y as wv ‘@) DoclId: 32315016 Page 2?
Released tyder the John F. Kennedy Assassination Records Collection Act of 1992 (44 USC 3107 Hote). DATE: 11-14-2017 ; reg as “oy } - KC 94-1504 As a result, to accomplish the desired penetration ; of the common wall, it was only necessary to remove one thickness ef bricks from the wall identified as X, and 1 (Diagram three). This allowed access directly to the baseboard of the office space in Store “X" and two mites, connected to separate leased lines were concealed in are Xj; an air passage was made through the plaster to the back of the baseboard, and vertically to the top of the baseboard in area Xj. The lines from the mites were run to the basement area of Store "Y" through chimney flue "BY and from thera to 7 ‘the plant. Insulation was placed in the flue above areas X, to Vy to avoid possible air flow noise; the bricks were replaced and mortared, The mites were connected binaurally at the plant. This was done to allow the gain control on the individual amplifiers at the plant to be set at a minimum, thereby decreasing line noise without curtailing intelligibility. Further, it was felt that this type of installation would prolong the life of the equipment, and each could be operated monaurally in the event there was failure of one of the instruments. It is felt that the method used in making this iustallation and the means of egress might be of interest of the Electronics Section and other field divisions, where similar problems of penetration are encountered. This is trues particularly - in older type business buildings separated by a common wall, where in many instances, the heating plant has been converted ‘from cosl to gas. The abandoned chimney flues thereby offer an excellent means to an end. it is further pointed out in connection with this installation, at Kansas City that because of legal access to Store “Y", where work was being done, it was possible te test different types of equipment in various combinations to determine which offered the best results, prior to sealing the opening permanently. The tape recording transmitted herewith is no longer needed at Kansas City and may be disposed of by the Electronics Section when it has served its purpose. Docld: 32315016 Page 3