Machine Cancel References, updated 7/96

 AK1 - The Alaskan Philatelist.
 AM1 - American Bar Cancels, 1884-1898 by Reg Morris. $10.
 AM1a- Update, American Machine Bar Cancels, MCF p.635.
 AM2 - American Flag Cancel Die Types, MCF p.869-872, 949-952,
        1029-1032.
 AM3 - American Service Marks, by Reg Morris, MCF p.663
 AM4 - American Wavy Line Cancels of Philadelphia,
       by Bob Summerell, MCF p.292
 AM4a- Update, American Wavy Line of Philadelphia,
       by Bob Summerell, MCF p.409
 AM6 - American Service Markings by Reg Morris & Bob Payne (1991)
 AM7 - American Machine Cancels by Reg Morris (1978).
 AM8 - American Machine Update, MCF p.1375
 AMF - Air Mail Field Cancels, by Gene Funk, MCF 592.
       (see also FEC - Flag Cancel Encyclopedia)

 BA5 - Barry Machine Cancels by Reg Morris and Bob Payne

 BF3 - Barr-Fyke Machine Cancels by Reg Morris and Bob Payne

 CO1 - The Columbia Story, Vol I, Morris, Payne, Holmes
 CO2 - The Columbia Story, Vol II, Morris, Payne, Holmes
 COL - Columbia / Ielfield Machines & Postal Markings by Richard
       E. Small (Draft copy April 1991)
 
 CU1 - The Time-Marking Machine Co and the B.F Cummins Co., by
       Louis Geschwinder, Reg Morris and John Koontz, MCF
 CU4 - Update, MCF-1523
 CU5 - Update, MCF-1849

 DB1 - Diagraphic-Bradley, by Edward C. Jackson, MCF 89, 354,
       537.
 DB2 - USPS Cancellations from Ft.Lauderdale, by Louis F.
       Geschwinder, MCF p.703.
 DO1 - Standard Encyclopedia of Doremus Machine Cancels, by
       Frederick Langford.
 DO2 - Doremus Machine Markings by Samuel Ockun, An Anthology
      of Machine Postal Markings, Volume 2 December 1992,
      Machine Cancel Society.

 FCE - Flag Cancel Encyclopedia, by Frederick Langford.
       (Flags  of AM, BA, BF, BK, CO, CU, IM, IN, UN,
        AM A6 (6-Bar), AM 6W)
 FL1 - Flordia Post Offices by Bart Billings

 HA2 - Hampden Machine by Reg Morris & Bob Payne (1991)

 IL1 - Intelex Cancels, by Eugene M. Funk, MCF p.

 IH1 - International Hand Driven Machines by Richard E. Small.
 IH2 - International Postal Supply Co, Model HD-2 by Bart Billings.
 IN2 - The history, machinery and postal markings of the International
       Postal Supply Company of New York by Reg Morris.
 IN3 - International Machine Cancels, 1888-1910, by Reg Morris.

 KL1 - Klussendorf Machine, BNA 0481
 KL2 - Klussendorf, Quebec, The Line Canceller
 KL3 - Klussendorf, Canada - West 1/17/88

 KYL - Postal History of Louisville, KY by Louis Cohen
     (LaPosta)

 L   - U.S. Postal Slogan Catalog, 1968, by Moe Luff. Slogans,
       Machines, but no types.
 LaP - La Posta
       Nov 93 and Jan 94 - Hand Stamped Flags (POC: Randy Stehle)
 LE1 - A Descriptive Catalog of The Leavitt Machine
       Cancellations by Frank B. Stratton, 1985 UPSS.

 MCF - Machine Cancel Forum (John R. McGee, Editor pages 1
       through 1980 (1986).
       (1987 on, Machine Cancel Society Journal).

 NC1 - Special NCR Cancels of New York, by Eugene Funk, MCF
       p.1222.
 NC2 - Postmark Pursuit, by Elaine Boughner, Linns, Jul 5 82.
 NC3 - Purple Postmarks, by Bill Henderson, PMCC Bulletin,
       May 82.
 NC4 - More on Purple Postmarks, by Richard Wonson,
       PMCC Bulletin.

 NE1 - Nebraska Altered State Abbreviations, MCF p.10348
 NE2 -  ", MCF p.1305
 NE3 -  ", PHUSA- 9/80

 P64 - Pray For Peace List by Walt and Mildred Montgomery (1964)
 P92 - Pray For Pease List by Bob Miligan (1992)

 PM  - Postal Markings (1930 - 1940).
 PN2 - Pneumatic Machine by Reg Morris & Bob Payne (1991)
 PB1 - Pitney-Bowes Machine Cancellations, by John Koontz. MCF
       p.82, 112, 130, 307 and 308.
 PB2 - The Straight-Line Mark II Machine Cancel, by Eugene M.
       Funk. PHUSA Dec 80.
 PB3 - Mark II Cancels, Straight-Line Killers, by Eugene M. Funk,
       PHUSA Mar 82.
 PB4 - The Pitney-Bowes Facer-Canceler, by Moe Luff, MCF p.781.
 PB6 - Straight-Line Killer Mark II Cancels, by Gene Funk, MCF
       p.1564.
 PB7 - Mark II Purple Ink Cancels, by Gene Funk, MCF p.1549.
 PB8 - Purple Postal Markings Impressed by Facer/Cancellers & Other/
       Machines During the period 1963-1974 / 1981-1984 by Bart Billings.
 PBS - The Story of Pitney-Bowes, by William Cahn (1961)
 PMG - Postmaster General Annual Reports
 PN3 - Pneumatic by Reg Morris and Robert J. Payne
 PR3 - Perfection Mechanical Handstamp Machine by Reg Morris & Bob Payne
       (1991)
 PV1 - Potter & Vail Machine Cancels by Jack Hilbing, 1987
 PV2 - Potter & Vail, an update by Jack Hilbing, An Anthology of Machine
       Postal Markings, Volume 2 December 1992, Machine Cancel Society.

 REM - REM Catalog of 771s by Roy Mooney

 TN1 - Tennessee Machines by L.Steve Edmondson

 UN4 - Universal Machine Cancels, Revision 2, by Bart Billings
 UK1 - Universal Model K Machine Cancels by Richard E. Small.
 UK2 - Universal Model K Machine Cancels by Richard E. Small & Bart Billings

 XX -  XX Killers (1946 - 1955), Paul H. Segnitz, Editor.