According to another classic Irish book on banking in the past, F.G. Hall’s 1949 history of that bank (cited by Michael not least for its nice architectural chapter on the Parliament House across from us here in Foster Place), the Directors were fined 1s 1d for being 15 minutes late for a meeting; the Governor was fined 2s 8½d.
The fine increased with the degree of lateness. And, in contrast to the trusting ways of latterday bankers, each Director was required to deposit 5 Guineas in advance from which the fines would be deducted. I wonder how many here can guess why such an odd amount as 2s 8½d?