Their system for number writing is complicated for our standard but reminds a little the Roman system, with the twist of being written and read from right to left. At least both write the last digit in a similar way (with I).
And this unusual little oddity of watermarked paper, apparently from the 1930s run of National Bank of Ireland series. Didn't pay much for it so a nice novelty piece:
Nicely done on getting that. Those Portals watermark paper samples have been much under appreciated as they hit the market.
