I stand corrected on the 39/300 part, too much wine with that turkey.

But,

The ID tag states 64-B-PEH.
The original sales literature states 64-B Low Pump, and both pieces of sales literature I have call these pumps the "60 Series."
The Repair Parts Manual states 64.

No letter in front of the model number, that was only used before National became part of Tokheim.

The green porcelain pump is shown on this page: http://petrolianacollectibles.com/national%2062a-64b.htm

Jack Sim


Author, 1st & 2nd editions of Gas Pump ID book, 3rd edition is now available at www.gaspumpbible.com
Air Meter ID book also available