3a -

Class 3a, London, 1.45g/9h (SCBI North 76; N 1016; S 1387). From the North Yorkshire Moors Collection of Marvin Lessen, auctioned by DNW in 2018-20.  Images courtesy of DNW, lot 559 (part), 3rd July 2019.  Provenance:  bt at Chicopee Falls (Massachusetts) June 1981.