Before the emergence of the NWT starting in 1950, the WTS used the Authorized Version and the KJV which says "was God." They had no problem moving around that scripture while quoting from other verses.
*** yb81 pp. 14-15 1981 Yearbook of Jehovah’s Witnesses ***In addition to having become a vast house-to-house preaching organization that distributes an array of Bible study aids, the Watch Tower Society also has a long history as a Bible publishing Society. The following Bibles have been published under its corporate name:
1896 "Rotherham’s 12th Edition of the New Testament," English
1901 "Holman Linear Bible" with the Society’s marginal notes
1902 Benjamin Wilson’s "The Emphatic Diaglott," Greek-English
interlinear
1907 "Bible Students Edition," King James Version, with 500-page
Appendix
1942 "King James Version," with marginal references and
concordance
1944 "American Standard Version" of 1901. Features Jehovah’s name
1969 "The Kingdom Interlinear Translation of the Greek
Scriptures"
1972 Byington’s "The Bible in Living English." Features Jehovah’s
name