Re: ANTIQUE OMC OUTBOARD IDENTIFICATION Home › Forum › Ask A Member › ANTIQUE OMC OUTBOARD IDENTIFICATION › Re: ANTIQUE OMC OUTBOARD IDENTIFICATION keplerfanUS Member - 2 YearsReplies: 26Topics: 19 April 25, 2018 at 5:53 pm #74751 When looking at it closer it does appear to be a 1 instead of a 7 but it is hard to tell . What is the difference in year?