The literature we use to determine dates of manufacture only covers gas pumps. But if you send me the info that is on the ID tag, I might be able to figure something out.
You may not know this but Bennett went in business around 1919, but they didn't make a gas pump until 1927 when they were merged with the Shotwell Pump Co. Between 1919 and 1927 they just made oil and grease dispensers. By around 1925 they had total sales of over $500,000, and I believe they were the largest producer of this type of equipment in the country. I wrote a lengthy history on the Bennett company for my Gas Pump ID book, but I also listed it on my website at:
http://petrolianacollectibles.com/company_histories.htmJack Sim
