Hard to tell from the pictures you supplied. It is a Tokheim 480, 500, 505, 600, 605, 610, 620, 629B, 625, 665, 660, 650, or 660-5. All shown on pages 332 to 335 of my new Gas Pump Bible Book. www.gaspumpbible.com
All of these pump are from around 1927 to 1930.
Pictures of all the above Model numbers can be view on this page of my website: http://petrolianacollectibles.com/tokheim%20pumps.htm
You will also need to show a lot more pictures if you want info on value.