Family heirloom Brass Murphy's Zippo Engraved

So a while ago I lost this, and a friend recommended that I post here. It was my fathers, who died around two years ago and I carried it with me everywhere to remind me of him. I lost it in Dublin city, but it's fairly distinctive. It's a Brass Murphy's Irish Stout Zippo, engraved on the lid are his initials and mine on either side (M .T. May and on the other side E. M. May). The case itself is the old part, being from 1989 I think, and the lighter inside is brand new refurbished from Zippo. Personally I only want the case back, as the inner cartridge has no sentimental value, hope you guys and gals can help me out. Cheers!