Yamaha series “M” part number 6J9-45976-10-00 Stainless Steel (3 blade) 14.5X21
The second one is also an “M” series part number MAR-GYT4B-V6-20 Stainless Steel (4 Blade)13 3/4X20
These both were for a Yamaha 150 four stroke. The four blade came with the motor when I bought it new and the three blade I bought aftermarket from Yamaha. Both are in excellent condition, I still have the factory box for the three blade. $250ea obo. shipping will be extra