For Ireland Czeslaw Slania has only engraved the below two stamps.  It is amazing to see how different a stamp can appear, even when engraved by the same person.  

Scott # 361

Scott # 362

• 1974.  Centenary of "Irish Rugby Football Union" (IRFU).  

Note:  There exists a distinct shade variation (a later printing) of the monochrome stamp, listed by Stanley Gibbons Specialised.  

Many thanks to Michael R. Curl for all help and research.