Hello all, I would very much appreciate as much info about these playing cards as anybody knows

My grandfather sadly passed, up in his attic were these 2 packs of cards.. still in pretty good condition I believe.

I'd like to know how much they are worth but also date

I'm so tempted to break the seal and see what they are actually like, as they look golden on the edges, and the pack itself out of the cardboard box doesn't bend what so ever.

More pictures on request

Many thanks

Andy