Age of steam boiler needed

Can anyone date the following gas-fired, steam boiler:

‘Hart & Cruise’ manufactured in either Ithaca or Utica NY.

Model # 5G 136
Serial # 14X03095 or 14X03995 …

ID tag was corroded @ the serial #

30th week of 1995??..39th week 0f 1995?? …or other?