Not very well versed on serial numbers but thought this one was interesting. Don't know if there is a name for this kind of number.
That's not a fancy serial number nor a cool serial number. Spender in my honest opinion. Some would call it a Date serial # 06/19/1609
Sort of a "double almost" -- almost a flipper, almost a repeater and/or radar. In fact, that seems cooler to me than a lot of actual fancy serial numbers. But still not enough for me to collect it.