It was one of five apparent BTF exports to the Caslon TF, which definitely purchased production and/or distribution rights to Armorial=Templar#. These BTF/Caslon transactions occurred in 1879–1881, when BTF employed no staff punch-cutter: C.E. Heyer had left in 1877, and J.F. Cumming was hired in 1881. Negotiations may have provided that Caslon furnish matrices for BTF production.
¹Gray, N. (1938): XIXth Century Ornamented Types and Title Pages, pages 192/206. Faber and Faber Limited, London.