This is a mid-century or slightly older work apron from a SE Portland lumberyard company. Made of white cotton, the printed front graphic shows an Owl with the motto “Be Wise- Modernize- Use Our Supplies, J. Greb & Son Inc. Building Supplies”.
 
Pre-owned, used hard and often from the looks of it, lol! Extensive wear and stains make this collectible workwear apron a true one-of-a-kind vintage piece! It's been gently hand washed to get the icky surface gunk but hasn’t been super-soaked to sparkly white because I like to preserve the patina that vintage work clothes get from repeated work & wear. I love authentic pieces like this and would hope it has an interesting work story to tell, lol. 
 
The apron measures-
Center front length- 21 1/4”  
Waist approx. 25” across 
Each waist tie is 25 1/2” long