The Milwaukee 585 is shown on page 217 of my Gas Pump Identification book. It was introduced in 1925, sold for $122.00 new, and was a ten-gallon, hand operated witha adjustable measure. It was also available in a 5 gallon version.
I have color brochures for the 585, and the 585 + 586 available. If interested please email me at jhsim@swbell.net.
Jack Sim
Author, Gas Pump Identification book
Author, 1st & 2nd editions of Gas Pump ID book, 3rd edition is now available at
www.gaspumpbible.comAir Meter ID book also available