Sunburst Books are probably not geared up for sending postcards abroad, so I suggest you contact Rainham National Map Centre the printers of them at email address rainham@mapsnmc.co.uk. They are on the upstairs floor at Station Road and probably more used to posting out items. The postcards are a bargain at 40p each, and the printers also supply A5 and A4 prints for £1.85 and £3.50.

Should they be unable to assist you, then let me know and I can probably arrange something myself.

Just out of interest, what were the names of your great great grandparents?