B.P.L., which stood for Briar Pipes Limited, was a Dublin company selling pipes primarily in airport duty free shops in the 1970s and 1980s, including a line stamped "Shannon Airport". Because Peterson had a line of "Shannon" pipes also sold at the airport carrying the name "Shannon", this brand is often suspected to be a subbrand of that company. There is no evidence, however, supporting such a claim, and Briar Pipes Limited appears to be a wholly separate company. Among other lines, B.P.L. sold a Kilarney pipe.