I almost wonder if this is a weird way to draw an arpeggio, but they seem like distinct arrows or left angle brackets each on a line to the left of a chord in piano music on the left-hand bass clef. They span the entire chord's length and include lines that don't have notes. How would you interpret this? I can't find a related answer or this listed in any reference.
Edit: This is a hymn called "Living for Jesus" composed by C. Harold Lowden. This is the third to the last bar. At the bottom of the page it says "Copyright, 1945. Renewal. The Rodeheaver Co., owner." It's a part of hymnal "Inspired Hymns" printed 1967 - second printing, copyright 1951 by Singspiration, Inc., compiled by Alfred B. Smith. Published by Zondervan Publishing House of Grand Rapids, Michigan. The arrangement looks a lot different than others I've seen online for the same song, including a lot of grace notes in the chorus.