Antique colored Lithopane & figural glass table lamp B

Quite rare Victorian table lamp (B) comprising of a mythical Dolphin type glass base attributed to Baccarat and a 6 sided shade holding different PPM porcelain Lithopanes. The lamp measures 17" by 11 1/2" overall. All of the lithopanes are impressed PPM and date to around the 1870's. There is no damage to any of the panels but there is a small piece of shade trim missing in the lower right hand corner as you see. One interior shade frame strut is loose but this doesn't seem to affect the whole. Indeed-I have used this lamp in my house for the last 20 years!