Looking at the 1918 catalog, I can't make a positive ID. There are two candidates. One is plate three on page 30. I don't know what a "Very-Verithin" is, or how to tell one from a regular Verithin movement, but I think this is the best match case-wise. It's described as "bascine" which essentially means seamless. Jumping forward to page 2 on the price list, if this movement is possibly a VV4, then the price would have been $95. Another possibility is plate 12 on page 35. It's described as "semi-bascine" which I believe is because it's not seamless looking, but rather the center section sticks out a little. But this model did have a regular Verithin V4 as an option. If that's what it is, then page four of the price list shows a price of $110.