 Evenson does not speculate about what Pollok did with the pages of version X that were replaced by version G. Version F still lacked the seven sentence insertion.When Bell arrived in Washington on February 26, 1876, Pollok apparently requested that Bell write the seven sentences and other changes onto version F in Bell's handwriting, thereby creating a draft containing the variable resistance feature that Bell could later testify was made before January 18, 1876 "almost at the last moment" before sending version F to his lawyers.The "smoking gun" that proved that Bell had illegally acquired knowledge of Gray's invention from examiner Wilber prior to filing of Bell's patent application concerns similar sketches of a liquid transmitter design that Gray and Bell's applications both contained.