Extremely versatile loafer heels by Amano Bootier.  They have geometric studded designs on the front tongue and on the back of the heel.

They have typical vintage wear:  some scratches and marks, worn soles. See photos for details.

Measurements: 9.9" length, 2.9" at widest point, 2.5" heel height.  Marked as a 7 M. Fit a modern 7.5-8.