Certainly looks like a Quarter Laurel (or 5 shilling piece [aka gold Crown] hence the V behind the king). The piercing will reduce the value quite a bit as many collectors simply do not like it. But having said that hammered gold coins are always popular. Value on such a piece is difficult to give, a conservative estimate without the hole would have been about £140, but taking into account the hole it really depends on the buyer, some might pay upto £100, realistically i'd say about £80-£90. I used to have one unholed in slightly better condition (albeit cleaned which reduced the value) and that booked between £170-£220 tops, different dealers quoted different prices for the piece, so the market on these is quite fluid.