Looked at an OT yesterday, as a possible restoration project. It is 18 feet, and the owner thinks it may be a Guide Model. Other than the fiberglass (yuk!), it looks to be very solid and quite restorable. Here's the puzzle - there are different numbers on each stem. One is 4047 - 18, and the other is 0474 - 18. Any thoughts on this? Do either of these match up with an OT Guide? Perhaps there was a little flask in someones back pocket the day the stems were stamped.....Thanks for your help! We looked hard for other numbers, but the light wasn't great, so we may have to go back with better gear if we get no results this time.