Floyd,
You're welcome!
The rear corners of your front mat fasten with the same male fasteners in holes in the #1 steel cross sill of your roadster's body. Ford's finish designation was "S-15", which is described as "oxidized". In plainer words, the finish was a dark bronze.
Since a '32 rumble mat is trapped on all four sides, no fasteners were used to attach it to the floor (unlike in subsequent model years).