"RL" series - any ID or info?

I've seen two images of this model (RL-2) and of another model in a similar style marked as "RL-3" - no more than half a dozen in total. It looks to be late '40s / early '50s but could be older.

Is she familiar to anyone?

RL2-01.jpg

Attached Images

• RL2-02.jpg (320.8 KB)
• RL2-01.jpg (104.0 KB)