anybody ever hear of this

Don_8

this tag is on my oil tank J.L.Clemmey Fall River Mass
and yes its only 180 gals
its been ther since the late 40's but its in great shape no rust and no signs of anything leaking
it was hooked to a monster old converted Kalamazoo hot air
with the blower on the top and it finally died last year.
i ws just wondering if anybody has ever heard of this.
im just a home owner.
i inherated the house from my dad and am still looking at many things doing on around here .
thanks again i have learned alot from you all.