An improved 1037i pattern was adopted from 1907 to 1911, but it was temporarily replaced by the earlier 1037 pattern from 1911 to 1914 while they did research for a replacement boot.
An improved 1037i pattern was adopted from 1907 to 1911. It was temporarily replaced by the similar 7325 and 7326 patterns from 1911 to 1914 while they did research for a replacement boot.