Michael Sinclairs' Bamboo Rod Restoration Handbook has South Bend #59 bass rods from 1936, '42, '49 & '51 listed. Comficient grip was first used in about 1939, after WWII the oval decal was changed to a yellow rectangle. A longer narrow rectangle decal with Made By/South Bend was used after that when fiberglass rods were introduced because of skinny rods. Color of wraps & hardware might date the rod better.