Without a manufacturers mark or UV, it's difficult to identify some of the various plain mold chips.
Best clues are age and geography.

My guess on the chip from Dublin is an older model from TCS-John Huxley.
It appears from their website that they are distributing chips made by Matsui or ICON now, but they had others in the past.

http://www.tcsjohnhuxley.com/en/live-gaming/chips-a-plaques.html

My guess on the Barcelona chip is Abbiati, from Italy. See their "Colour Chips Heavyweight" on this webpage.

http://www.abbiati.it/index.php?option=com_content&view=article&id=57&Itemid=64