Is there a name for this kind of brooch? (lime green front, white back)

[ifmelfalls]

I feel like I've seen this before so I was wondering if there was a name for this. The front is lime green and the back is white. Looks painted but not sure with what kind of paint?

Thank you in advance!

[1940fc]

Hmmm..dunno if it qualifies for Japanning or not.  Is what it reminds me of.   Japanning isn`t always black

Japanning - Wikipedia, the free encyclopedia

Japanning is most often a heavy black lacquer, almost like enamel paint. Black is common enough that japanning is often assumed to be synonymous with black japanning. The European technique uses varnishes that have a resin base, similar to shellac, applied in heat-dried layers which are then polished, to give a smooth glossy finish. It can also come in reds, greens and blues.

[bluedaemon23]

I think your pin is plain old enamel, similar to what you find on other enamel flower pins. Lacquer and shellac are thin liquids and applying them in multiple layers gives a very different look than the flowed-on look of a thick paint like enamel, at least it does on furniture.

[ifmelfalls]

Yeah, it looks like reverse/opposite of jappaning. lol. 

bluedaemon - Okay, thank you!