Man pages matching name ptsb in section 1p:

ptsb.1p.en	debian 10 / libfinance-bank-ie-permanenttsb-perl
ptsb.1p.en	debian 11 / libfinance-bank-ie-permanenttsb-perl
ptsb.1p.en	debian 12 / libfinance-bank-ie-permanenttsb-perl