We are desirous of having a case for the microscopic attachment and sundry fittings which you recently supplied for the Society's meeting. It need not be an expensive one as it is simply intended as a safe repository for the apparatus when not in use. Please be good enough to acquaint me with the probable cost of such a case in painted seal.
I am, yrs [yours] truly,
Asst. Sec. R.S. [Assistant Secretary, Royal Society]'.