A catalogue of the genuine collection of shells, fossils, pictures, specimens of penmanship, coins and medals in gold, silver and brass, and various other articles, of the Late James Theobald, Esq; F.R.S. and F.A.S : Which (by order of the executor) will be sold by auction, by Mr. Langford and son, (together with a collection from abroad) at their house in the Great Piazza, Covent Garden, on Tuesday and Wednesday the 14th and 15th of this instant June 1768. The said collection may be viewed on Saturday the 11th instant, and (Sunday excepted) till the time of sale, which will begin each day punctually at twelve o'clock. Catalogues of which may be had gratis at Mr. Langford's aforesaid. ([publisher not identified], 1768)