N174 “Old Judge Celebrities & Prizefighters” is a subset of the enormous Goodwin & Co. output, along with N172 (baseball) and N171 (actors and actresses). The boxers command strong prices, while celebrities are far less expensive but are harder to find. The same cards can also also be found with Gypsy Queen and S.F. Hess brandings, both of which are much scarcer.
There are 4 known formats for the card captions, so a ‘master set’ would be quite large. Also, some of the cards were issued only in Australia: the Costello card below is an example. As on June 2022, I have dupes of John P. Clow (PSA 6) and Paddy Ryan (SGC 50) for trade or sale. Contact me if interested.