The 44 code on the tag is an example. Yours may differ. Here are the other codes

28 - D70x14 redlines nylon belted
38 - E70x14 redlines steel belted
42 - E70x14 redlines fiberglass belted
44 - F70x14 redlines steel belted
45 - F70x15 redlines nylon belted
46 - F70x14 whitewall steel belted
85 - G70x15 whitewall fiberglass belted
99 - special order tires