Early Citrus Spray Rig- Arthur O. Spray Business, Harper is standing, A. L., A. O.
is standing on next rig, Harold Green, cousin from Kansas standing, William standing. Don't know who the last man near
A. L. has written on back of pic:
These horse drawn rigs later were changed to small international trucks.
Picture was taken by Frasher's, 158 E. Second St., Pomona, Ca. - No date.