...The mostcurious custom of the tribe is the filing of the front teeth into sharppoints, which gives the whole face a most peculiar and ratherdiabolical expression... 
J. H. Patterson 「The Man-eaters of Tsavo and Other East African Adventures」
..." On filing said affidavit, and paymentof fees and commissions, the entry will be permitted...
W. E. Webb 「Buffalo Land」
...The Barber succeeded in filing his irons through and again digging through the wall, there was no military guard over the gaol, and the constable in charge appears to have deserted his post...
Thomas Mitchell 「Three Expeditions into the Interior of Eastern Australia, Vol 1 (of 2)」
...Much of the quicksilver had shaken out of the bag and lodged in the lower part of the cylinder; but by filing the brass and letting off this mercury the instrument was rendered once more serviceable...
Thomas Mitchell 「Three Expeditions into the Interior of Eastern Australia, Vol 1 (of 2)」
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