SPRINGFIELD – Habit makes it easy to misread the decimal point on a colorful “Mobilgas ethyl’’ pump in the Museum of Springfield History. Look closely: It advertises fuel not at $1.59 a gallon but at 15.9 cents. That was a good thing, considering that the 1911 seven-passenger Stevens-Duryea luxury touring car displayed around the corner got only seven miles a gallon.

http://www.boston.com/travel/explorene/massachusetts/articles/2010/01/31/museum_will_have_you_wanting_the_car_keys/