Perfin group releases newsletters

The Perfin Study Group has dropped the five-year delay between the publication of its newsletter, The BNA Perforator, and posting it on the BNAPS website. The group’s newsletters will be posted immediately upon publication. Also, all the newsletters published between 2017 and 2022 (18 issues) are now available online. The study group is very active, having published six newsletters this year. In addition, the Canadian perfin handbook is available online and is updated periodically. The Study Group welcomes new perfin enthusiasts and new contributions. For more details, visit

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