PST tank ID help

[gobuyastick]

I have a set of PST LP steel tanks that i believe are 104s but i would like to know for certain and make sure they are in fact 104s and not 95s. They have the PST stamp and the other markings are:

DOT 3AA 2400 (I know this means it's lp)
IA 735180
81
TC-3AAM184
6lA01
REE 87.9

Any help is much appreciated

 

[tbone1004]

REE of 87.9 should be a 104

 

[gobuyastick]

REE of 87.9 should be a 104

Thanks tbone