OK, well here goes nothing. I'm looking for any available info on the origin/history/value of this Luger. It belongs to an older lady who has asked me to sell it for her on Gunbroker.com, so I want to post enough information and a reasonable enough starting/expected price not to get laughed out of town

The only thing that doesn't match are the mags, of which there is one wooden base, one aluminum base, and one black plastic (presumably modern!). The photo files are huge, so I put them on a shutterfly page:
https://luger251.shutterfly.com/pictures/8
Thanks for your expertise!