Symbol 2937 from ISO 7000 - Title/Meaning: Material (bar) loading guide, all bars used up (empty) 
Function/description: To indicate that the multiple bar feeder (material loading guide) is present and all bars are used up (empty).
Own work using: iso.org/obp/graphics/grs/cca2e137-d831-4cc2-8b50-29c231997981 200.png
Vectorization:  Mrmw