Located either in trains or vans and used to sort and cancel mail on the move

Cancel Type	Potter No.	EKD	LKD	Cancel Notes
Temp. Rubber Handstamp. Type - R1/29	9700.01	1.9.1913	xx.xx.1918	Reads: T.P.O.” in a rectangle without date or other wording. EKD strike was in purple.
Temporary steel datestamp	9700.02	8.1.1918	13.6.1933	Reads: T.P.O. / JAMAICA” and appears to have been used on the railway. May be two fine and close rings but cannot be separated even on early strikes.
Double Ring Datestamp	9700.03	6.4.1927	22.11.1937	Two fine single rings close together. Year often added in manuscript. A squarish "O". Used on the Kingston to Montego Bay line.
Double Ring Datestamp	9700.04	7.7.1927	24.11.1937	As previous die but the full stop after “O” of T.P.O. is very low. A round "O". Used on the Kingston to Port Antonio line.
Double Ring Datestamp	9700.05	28.12.1937	15.8.1963	Reads: “T.P.O. / JAMAICA” with the index “1”, “2” or “3” above the date. Appears to have been used on the Kingston to Montego Bay line.
Birmingham. Type - B1	9700.06	28.5.1948	19.5.1955	No Potter listing for 9700.06, but Proud and Horry list two forms of the Type B1 mark. Last "A" is wide. Used on Kingston to Port Antonio line. Date shown is proof date!
Birmingham. Type - B1	9700.07	7.12.1949	4.1.1963	Last "A" is narrow. Date shown is proof date!
Temp. Rubber Handstamp. Type - O3*/37	9700.09	22.6.1963	3.8.1965	Reads: “T.P.O.-4” used in greater Kingston
Temp. Rubber Handstamp. Type - O3*/37	9700.10	2.5.1963	11.6.1963	Reads: “T.P.O.-5”.
Temp. Rubber Handstamp. Type - O3*/37	9700.12	8.1.1965	8.1.1965	Reads: “T.P.O. 2 / JAMAICA”.
Temp. Rubber Handstamp. Type - O3*/37	9700.13	22.10.1963	15.3.1965	Reads: "T.P.O. 1 / JAMAICA".
Temp. Rubber Handstamp. Type - O3*WI/37e	9700.14	27.8.1964	20.11.1966	Reads: “T.P.O. 2 / JAMAICA W.I.”.
Temp. Rubber Handstamp. Type - O3*/37	9700.15	26.5.1961	8.3.1966	Reads: “T.P.O. 3 / JAMAICA”.
Temp. Rubber Handstamp. Type - O3*/37	9700.16	3.12.1963	3.8.1965	Reads: “T.P.O. 4 / JAMAICA”. Used in the greater Kingston area.
Temp. Rubber Handstamp. Type - O3*/37	9700.17	26.6.1963	25.1.1965	Reads: “T.P.O. 5 / JAMAICA”.
Temp. Rubber Handstamp. Type - O3*/37	9700.18	4.3.1964	4.3.1964	Reads: “T.P.O. 6 / JAMAICA”.
Temp. Rubber Handstamp. Type - O3*/46a	9700.20	4.4.1961	19.3.1966	Reads: “T.P.O. / Mandeville - Savanna La-mar”.
Temp. Rubber Handstamp. Type - O3*/46b	9700.21	22.6.1964	13.11.1965	Reads: “MONTEGO BAY - ST ANN’S BAY / JAMAICA” with “T.P.O. 3” inserted above the date. Known with the “3” missing.