yep, this is one of the BP1860P to V range. I believe it to be BP1860V with re-entered colon dots, one of the later stages of modification because there is almost no rim beyond the teeth - something I have found to be the case on the final stages of the range. Take a look at my pics on the website below. Although Gouby thought that the colon dots were re-entered, I have my doubts about this as there are so many variations in the size and distance apart of the "re-entered" colon dots. I haven't developed an alternative theory yet though, so I'll still refer to them as re-entered.