Thanks a lot for posting these pictures. They are high resolution and very clear, so that should help. I missed that ne of your pictures had already shown the screw quite nicely.
The sound can be surprisingly loud when everything is working properly. Sound quality much better than a Bing Pigmyphone, but obviously far from a "real" portable with a tonearm and horn.
Here are some pictures of the British Guiniphone paper cone, instructions disc, and logo. Funny, the logo says "All British". I thought I had a picture of the basket weave pattern as well, but can't find it right now.
![$(KGrHqJHJCwE8fq,Cn6BBPI8EjyUiQ~~60_12.jpg](./download/file.php?id=18872&sid=d81b85901c6aefb07689310763c7b6ca)
- $(KGrHqJHJCwE8fq,Cn6BBPI8EjyUiQ~~60_12.jpg (34.34 KiB) Viewed 776 times
![$(KGrHqVHJC8E8fUFsHUKBPI8ENUgd!~~60_12.jpg](./download/file.php?id=18873&sid=d81b85901c6aefb07689310763c7b6ca)
- $(KGrHqVHJC8E8fUFsHUKBPI8ENUgd!~~60_12.jpg (37.4 KiB) Viewed 776 times
![$(KGrHqFHJCcE8fZyq,I)BPI8EvH)dg~~60_12.jpg](./download/file.php?id=18874&sid=d81b85901c6aefb07689310763c7b6ca)
- $(KGrHqFHJCcE8fZyq,I)BPI8EvH)dg~~60_12.jpg (64.46 KiB) Viewed 776 times
Here is an ad from 1929 for the Polly.
Thanks again
Andreas