Which hammer type will give me this effect?

[gaylecath]

Hey everyone,

I'd love to achieve the beautiful hammered effect in the image I've attached. Could someone tell me what type and size of hammer type would be best? I was going to invest in a Fretz planishing hammer, but Cooks only do the large ones and I have a feeling that might not give me the effect I'm after. Been getting by with a simple ballpein hammer until now so I'm a bit of a rookie I watched a lot of videos online, but I can't find a good example of what I'm trying to achieve

Any help would be so appreciated