HELP! A collectibles dealer friend needs a refill for a Bulgari pen he's trying to sell. It is 4.5 inches long with cap, 4 1/8 inch long barrel alone, 5/16 inches wide barrel, fluted barrel & cap, slip cap, silver color and the nozzle is marked BVLGARI and 925 and a couple of hallmarks I cannot read. Clip has crown at the top. I've tried a few ballpoint & rollerball refills I have on hand--nothing fits. Does anybody know what will work? Davis Rankin