Antique prop ID

[lyks2tinkr]

I was out today and stopped at a few antique shops in town and found a 3 blade brass prop for a pressure vac cooling motor.Looks like late 20s early 30s Evinrude Speeditwin to me.
The number on it appears to be 100615. D 10-1/2. P 11

[dave-bernard]

don’t know what it is for but it indicates it is 10-1/2 in diameter x 11in pitch.

[frankr]

100615 does seem to be consistent with typical Evinrude prop numbers of the day, but it doesn’t appear in my chart.

[garry-in-michigan]

I don’t see. any Evinrude numbers like that – Possibly for a Sixteen Horse Power Model SD Johnson from 1940 through 1950 . . .

• This reply was modified 6 years, 5 months ago by garry-in-michigan.

[lyks2tinkr]

Thanks for the replies.
It’s definitely not Johnson SD.
The water passages are on the flukes like an Evinrude or Lockwood but the prop is way too big for any Lockwood I’ve ever seen.
I’ll have to resize a picture and post it.

[lyks2tinkr]

Here is a pic of the number.

• This reply was modified 6 years, 5 months ago by Mumbles.

[retiredoz]

For what it’s worth, Michigan lists a 10 1/2 X 11 for ’46-’49 Speedifours and storm boats

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