Passage: However, from the many thousands of papyri excavated from Oxyrhynchus, only about 10% were literary. The rest consisted of public and private documents: codes, edicts, registers, official correspondence, census-returns, tax-assessments, petitions, court-records, sales, leases, wills, bills, accounts, inventories, horoscopes, and private letters. Still, Grenfell and Hunt found enough texts of more general interest to keep them going in the hope of finding more. In their first year of digging alone, they found parts of several lost plays of Sophocles, such as the Ichneutae and many other books and fragments, including parts of what appeared to be an unknown Christian gospel. These discoveries captured the public imagination, and Grenfell and Hunt sent articles and photos to newspapers in Britain, arguing the importance of their work and seeking donations to keep it going.

Question: In what country were the companies which Grenfell and Hunt sent things to located?
Britain