this next design consists of two parts - I wonder how many have survived complete, as pairs.
Registration No. 800714 dated 27.02.1935 - cigarette box/ashtray - catalogue No. 2598.
Certainly the factory catalogue image doesn't show this Registration as a two-part design, neither does it appear that Baker & Crowe indicate as such - on the other hand photos sent to the BoT in 1935 show the two parts separated/unassembled, as shown in the attached pix.
When joined, the square shaped part ('the box'), in photo No. 3 sits atop the squat lower unit (the ashtray), in photo No. 4, and whilst I've never seen an example I'd suggest the following - though I stand to be corrected.
When not in use the pair are united - box on top of ashtray, with the box acting as a repository for cigarettes and the complete unit placed on a table. When required, a cigarette is taken from the box and the box then placed to one side leaving the lower section exposed to receive ash. Centrally, in the ashtray, there is a dome shaped hump presumably used to stub out the cigarette, and I'd guess this also serves to provide a stable base for the box when joined.
The catalogue indicates available in flint satin finish (pattern only) - as is often the case, dimension aren't provided.