A catalogue of the shells, mathematical instruments, fire arms, &c. of Francis Grose, Esq; Late of Richmond, deceas'd : Which (by order of the executors) will be sold by auction, by Mr. Langford and son, at their house in the Great Piazza, Covent Garden, on Wednesday the 4th of this instant April 1770. Beginning at one o'clock. ([publisher not identified], 1770)