Foto propiedad de Carlos Sanchez Alzaga, sobrino nieto de Macoco Alzaga Unzue
"Macoco Alzaga Unzue with Louis Zborowski and Clive Gallop taken in New York in 1923. The names which have been mispelt have been written in some time later. The man third from the left appears to be A. Lavete who was presumably Señor Alzaga's mechanic.
1923 was the year that five Bugattis ran at Indianapolis, only one finishing. The drivers and their placings were as follows: Alzaga 6 laps broken con rod, Raganti 19 laps fuel tank failure, Zborowski 41 laps broken con rod, De Vizcaya 165 laps broken con rod, Cystria finished ninth. Tom Milton picked up the first prize of $20,000 averaging 90.095 miles per hour in 5 hours, 29 minutes 50.17 seconds over the total 500 miles race distance. The Bugattis were absent the following year."

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