Sterling Dragonfly earrings hallmark help

I bought all three of these also today. the pin with the earrings.
the pin is unmarked and looks like brass. But looking at the earrings i found the hallmarks on the back. these are only 5/8" long. any help with the marks would make my day.

Mikey

 

Looks like 925© RD?

 

I could see the 925 and C but couldn't make out the letters. I've polished them and will get more pics when the sun comes up. If it does.

 

Mikey, it always does, you just have to chase the clouds away.

 

It may take a while. My chasing skills have depleted over the years. In the meantime, Did you look at my other post in jewelry?

 

I'll do that later this afternoon (Central European time), I have to go now.

 

New pic, it does look like R D