I think the recolored frame and lock plates will merit a bit of a knock. Also, I suspect that the 2 3/4" chambers are not OE as there is no mention of heavy OE proof. Obviously the barrels and furniture are reblacked. I'd call it Current Condition level five (CC5) = restored. BV1-OQ1-CC5 = $12,000; you can bump that up a bit if it is really a good restoration. The low estimate of £8000 translates into about $10,000/gun and may be a tad low. However, I'd be very skeptical of $15,000/gun as the high estimat implies. $21,000 should buy a BV1-OQ1-CC3 (OE with significant use) gun. You are talking top 'o the heap here, so small changes in current condition make big changes in price.
