Rhynconella Nobilis

[cream, ruled laid paper; worn embossing at u.l.: B & Co [sprigs over a basket of flowers on a table with B & Co in a rectangular impression]; handwritten page, verso, visible]

R^hynconella nobilis Hall [James Hall Jr. (September 12, 1811 – August 7, 1898) was an American geologist and paleontologist.]

Resembles the European R. Stricklandii, Sowerby [James De Carle Sowerby (5 June 1787 – 26 August 1871) was a British mineralogist, botanist, and illustrator.]; but its profile
is somewhat different, and the margin of the valves are much
less serrated .

Pre Meridian rocks - Penna ["a" written in superscript]