Vintage set of 3 pinback buttons from the 1980s from Canada / Quebec about natural gas / pipelines

• "Energy on its way - natural gas" - TC Trans Quebec & Maritimes Pipeline - 1982
• "An energy tip - natural gas" (play on French words for tip and pipe) - likely also Trans Quebec & Maritimes Pipeline
• "Do you know where your gigajoules have gone?" - Natural gas leak safety - possibly Alberta - 1980s
  

Ships from Canada. Local pickup in Ottawa. Check out my other items - will combine shipping - ask for invoice!