Railway Preservation Society of Ireland
13th May 1981. Definitives.
Designer and Printer: Format Security Printers, London. Offset-lithography in sheets of 9 (3 rows of 3). Perf.: 14. Number Printed: 12,600 of each. Number of First Day Covers: 1,000.
20p
Multicoloured. GNR Class S 4-4-0 No. 171 Slieve Gullion.
20p
Multicoloured. GS&WR Class J15 0-6-0 No. 186.
20p
Multicoloured. LMSR (NCC) 2-6-4 T No 4.
 
Se-tenant strip of 3.

8,238 were overprinted or surcharged for issues of 12th December 1981, 21st August 1982 and 4thth September 1982. Proof sheets were issued.

12th December 1981. Surcharged Definitives.
Issue of 13th May 1981 surcharged in red by MMT Printers, Belfast. Number Printed: 4,350 of each. Number of First Day Covers: 300.
IR£0.33 on 20p
Multicoloured. GNR Class S 4-4-0 No. 171 Slieve Gullion.
IR£0.33 on 20p
Multicoloured. GS&WR Class J15 0-6-0 No. 186.
IR£0.33 on 20p
Multicoloured. LMSR (NCC) 2-6-4 T No 4.
 
Se-tenant strip of 3.

Proof sheets were issued surcharged in black.

21st August 1982. Portrush Flyer.
Issue of 13th May 1981 overprinted "PORTRUSH FLYER" and surcharged by MMT Printers, Belfast. Number Printed: 1, 500 of each. Number of First Day Covers: 260.
22p on 20p
Multicoloured. GNR Class S 4-4-0 No. 171 Slieve Gullion.
22p on 20p
Multicoloured. GS&WR Class J15 0-6-0 No. 186.
22p on 20p
Multicoloured. LMSR (NCC) 2-6-4 T No 4.
 
Se-tenant strip of 3.

4th September 1982. Steam Enterprise.
Issue of 13th May 1981 overprinted "STEAM ENTERPRISE" and surcharged in black by MMT Printers, Belfast. Number Printed: 1, 500 of each. Number of First Day Covers: 265.
22p on 20p
Multicoloured. GNR Class S 4-4-0 No. 171 Slieve Gullion.
22p on 20p
Multicoloured. GS&WR Class J15 0-6-0 No. 186.
22p on 20p
Multicoloured. LMSR (NCC) 2-6-4 T No 4.
 
Se-tenant strip of 3.

4th September 1982. Provisional Issue.
Issue of 13th May 1981 surcharged in black by M&G Printers, Cookstown. Number Printed: 888 of each. Number of First Day Covers: 200.
IR£1.00 on 20p
Multicoloured. GNR Class S 4-4-0 No. 171 Slieve Gullion.
IR£1.00 on 20p
Multicoloured. GS&WR Class J15 0-6-0 No. 186.
IR£1.00 on 20p
Multicoloured. LMSR (NCC) 2-6-4 T No 4.
 
Se-tenant strip of 3.

This issue was needed when it was required that railway letters be charged at the same rate as those carried by Córas Iompair Éireann.

10th May 1985. Definitives.
Designer and Printer: Dollco Printing and Banknote Co., Ottawa from an illustration by Messrs. Mcbride, Kitts and McCorkell. Offset-lithography in miniature sheets of 8 (2 rows of 4). Perf.: 13 x 13.4. Number Printed: 4,500 of each. Number of First Day Covers: 200 of each.
20p
Multicoloured. GNR Class S 4-4-0 No. 171 Slieve Gullion.
20p
Multicoloured. GNR Class S 4-4-0 No. 171 Slieve Gullion.
20p
Multicoloured. GS&WR Class J15 0-6-0 No. 186.
20p
Multicoloured. GNR Class S 4-4-0 No. 171 Slieve Gullion and LMSR (NCC) 2-6-4 T No 4.
20p
Multicoloured. GNR Class S 4-4-0 No. 171 Slieve Gullion.
20p
Multicoloured. GS&WR Class J15 0-6-0 No. 186.
20p
Multicoloured. LMSR (NCC) 2-6-4 T No 4 and 'Portrush Flyer'.
20p
Multicoloured. Avonside 0-6-0ST No. 3 R.H. Smythe.
 
Miniature sheet of 8.

1,200 were overprinted for issue of 12th May 1986, 19th July 1986, 25th August 1986 and 6th September 1986. Some sheets were sold to an Australian dealer and overprinted 'AUS STEAM'.

11th May 1985. Definitives.
Designer and Printer: Dollco Printing and Banknote Co., Ottawa from an illustration by Messrs. Mcbride, Kitts and McCorkell. Offset-lithography in miniature sheets of 4 (2 rows of 4). Perf.: 13 x 13.4. Number Printed: 4,476 of each. Number of First Day Covers: 200 of each.
IR£1.23
Multicoloured. Avonside 0-6-0ST No. 3 R.H. Smythe.
IR£1.23
Multicoloured. GS&WR Class J15 0-6-0 No. 186.
IR£1.23
Multicoloured. GNR Class S 4-4-0 No. 171 Slieve Gullion.
IR£1.23
Multicoloured. LMSR (NCC) 2-6-4 T No 4.
 
Miniature sheet of 4.

900 of each were overprinted for issues of 17th March 1986, 11th May 1986 and 20th September 1986. Some sheets were sold to an Australian dealer and overprinted 'AUS STEAM' in green.