Postcards: Irish Political, ''Countess Markievicz,'' 8 varied cards, include.''Return of I.R.A. Prisoners, Monday 18th June 1917,'' (2), all unused, some scarce. (8)

Postcards: Irish Political, ''Countess Markievicz,'' 8 varied cards, include.''Return of I.R.A. Prisoners, Monday 18th June 1917,'' (2), all unused, some scarce. (8)