1991 volvo penta outdrive serial # location?

Can anyone help be locate the serial number on my 1991 volvo penta outdrive. The outdrive is white. Thank you

should be a tag on top of the drive. forward of the top cap. may take a light wire brushing to clean up

dubs283 said:
should be a tag on top of the drive. forward of the top cap. may take a light wire brushing to clean up

Thank you much.

Top