I should be obliged by your giving me an estimate for making a flag, similar to the one that has been in use here for some time, size about 14 ft. [feet] by 12 ft., which would have to be delivered here not later than the 27th inst. [instant]. The flag can be seen here at any time.
I am, faithfully yours,
Asst. Sec. R.S. [Assistant Secretary, Royal Society]'.