As stated with the title, I need some help. I found a 15 gallon lubester in a barn here in Tennessee, and I have been banging my head against all sores of walls and dead ends with NO results. Here is all I know about this piece of equipment. The original color looks to be an orange maybe similar to the gulf orange. There are no tags to be seen, nor are the any point that look as if there were rivets were once inserted, the size of the tank, and on the pump handle there is an 'S' stamped inside two brackets '[' and ']'. These brackets do not connect with one side slightly higher than the other forming a diamond around the 'S'. I was hoping that you all could help me.