Thanks Alan for your insights on the available reference books for OE pwts; are back issues of PCA publications available, perhaps digitally?
Yes Alexander, I had the paperweight restored, the scratches on the top were quite extensive and made the dome cloudy in appearance. The photo of your pwt is what I think of as typical Gillinder canes, which are clear/hollow in the center, most of mine aren't; so probably, as you stated, not Gillinder.
Since my earlier post, I've been reviewing Bob Halls' book, and think I have found 2 (!) possible matches for the center cane in my pwt - would love to hear comments back if you agree...or I need to have my eyeglass prescription updated

I think the possible matches are a) pg. 174, bottom left, cane is repeated in several areas, most prominent view is first row, 3 o'clock position and b) pg. 180, bottom left, canes in the second ring.
I've reattached photo of center cane in my pwt. -raj