To date, none have been found.
 
	A small sample of the new coins must have been produced in order for engineers to calibrate + test phone boxes, parking meters, and vending machines.
 
	Could they have done this work in the first five months of 1992, or was there 1991 five pence coin?
 
	Is this the Holy Grail of Irish numismatics? 
 
	O’Brien Rare Coin Review: Does an Irish (small) 1991 5p coin exist?
 
	https://oldcurrencyexchange.com/2016/08/17/obrien-rare-coin-review-does-an-irish-small-1991-5p-coin-exist/