Some of these lists just aren't right. The Oliver 500 serial numbers supposedly end at 102 000 meaning 2000 were made,but numbers higher than that have been found. It's pretty well accepted that there were actually 2048 built. There were 2 sent here in 1959 that were mocked up to look like Olivers but didn't have an Oliver tag. I have 100003 and it doesn't have an Oliver tag. It has a brass tag that's been identified as a prototype tag from the David Brown experimental department,so apparently three of them were mocked up. We don't know if number 1 stayed in England or what the deal was.