Hi mate I recently aquired a model one Diana as I wanted it for old time sake. One of the guys on here saw it in J Nibbs & I rang up & bought it. It is boxed with its metal target holder/darts & plastic pellets for indoor use the kit is called Home Shooting Gallery,it has been used but it is very nice, bluing intact & no rust. I was told probably dates around the early 1950s. I paid £115 for it inc post. Its like anything else condition & how desirable is it & how rare will up the price. I did not buy mine for a profit & I would think if I sold it on here would make a loss but I never bought it for profit.