This is Plaque no. 7 by Robin Buick, following Leopold Bloom’s midday walk. Yeates and Son has long gone. The plaque is outside a Bank of Ireland office at the corner of Nassau and Grafton Streets. This is very apt as Bloom later comments that there’s a little watch up there on the roof of the bank to test those glasses by.
The bank he was referring to was the Bank of Ireland on College Green. Apparently, the prospective purchaser of a pair of fieldglasses could test them by reading the time on a watch about 150m away!