Mine is one that came with the E-Z Vac system. The E-Z Vac people would use carts from various the various brands for their systems. Bolens carts for the Bolens folks, CC carts for the CC folks, JD carts for the Deere guys, etc.
I have a Bolens cart as well. Bought it pretty rough and have cleaned up everything, fixed broken welds, POR15'd the entire thing, paint and new tires. I forgot to take any after pics though. It's a handy lil cart though a little on the small side. I still need to make a tailgate for it. IIRC the original tailgate would've been wood.