Due to the rarity of credentials from the 1909 through 1916 period, it is uncertain what type of credential was most commonly used. As seen below, a variety were used. The Whitehead & Hoag Co. of Newark New Jersey is one *known manufacturer of credentials from this period as seen on the bottom edge of the 1912 Concession. It is *uncertain who manufactured the other types of credentials from this period.
1911
All though not an official Speedway credential, this advertisement (made of pasteboard)
for Apperson and Rayfield carburetors was used during the 1911 '500'.
1912
Although the ribbon is long gone from the pin at right, it more than likely went to a similar
credential from 1912 like that on the left.
**
The Whitehead & Hoag Co. of Newark New Jersey on the bottom edge.
1913
This pin back button is believed to be a "Driver" credential from 1913.
***
1914
1915
Note the blank space where a designation could be written in.
1916
