12902 is a 59. Wouldn't be surprised if the 10 and 12 are the same.10 and 12 use the same prop The 10 was in production 56 through 64 the 12, 56-59.12 appears again in 61-64, the 10
West bend also made motors for Sears called Elgin and later Sears.
You might use the free webvertize at www.aomci.org .Someone may be able to tell you what motors share those parts.
