That is a McCauley threaded series propeller. If the blade tips are square, then it would be a D3A32C77, because of the extended hub and could be used on a Cessna P206A, P206B, TP206A, 210F, T210F, T210G. If the blade tips are round and not as wide as I see, then it would be the later D3A32C88, which was used on the Cessna 206 and 210 series aircraft.
That is a McCauley threaded series propeller. If the blade tips are square, then it would be a D3A32C77, because of the extended hub and could be used on a Cessna P206A, P206B, TP206A, 210F, T210F, T210G. If the blade tips are round and not as wide as I see, then it would be the later D3A32C88, which was used on the Cessna 206 and 210 series aircraft.