Picked up this pretty little gal this week. I think it is Olivia and would be the first in the DB. Not sure on the date because the serial number starts with a 4 but the ad is from 1927 and the movement is 1928. Might have a dial/movement replacement? I think it might be worth trying to find a new correct movement/dial replacement, the dial is pretty dirty.
It is solid 14k with black enamel.
In reply to What a wonderful little… by Geoff Baker
In reply to Now that you learned the… by Alex
They all look like the new color to me. The Baroness is not quite as white as the other two but whiter than the 156. If you are interested in comparison shots let me know and I can attach some. Thanks for all your help on these old beauties and for the trick on the gold color.