What year are these motors

[littlefrog]

Could someone tell me the year of these motors?

Merc200 20hp. with blue stripes. ser. 4291641
Merc Thunderbolt 800, 80hp. with red stripes. ser. 3059213

Tried various sites with no success
Please answer to my e-mail address
Thank you,
Roger

[boats.net]

Unfortunately those serial numbers are too old for me to tell, I woud say early 70's late 60's

[littlefrog]

Ok thanks, do you know anyone that may be able to tell me.

[boats.net]

You might try contacting Mercury direct.

[littlefrog]

Ok thanks
Roger