As a kid in the early 1970s I used to frequent the local town dump and salvaged quite a bit of stuff; this is one such item and it appears to be complete. I've carried it around with me since then, not using it for anything but just thinking it was too neat to throw away. It looks pretty much the same now as the day I found it!
I've found some references to this company and products in an 1883 online archived version of "Sunday Talk" and here's a link to an old advertisement which suggests a date of 1920:
https://www.flickr.com/photos/robertpool/6009310960/sizes/l
Five of the pieces are interchangeable with the large compass tool, so one could use ink, or pencil lead, or a scribe. I don't quite understand how all the various ink tips could be used although most of them seem to be compasses to create various sizes of circles.
The logo on the inside lid reads: Miller's Drawing Material Warehouse; 186 Trongate, Glasgow.
A cloth tab allows the fabric insert to be pulled up - it's hinged on itself with more purple silk-like material underneath, perhaps a storage area for papers and such. The condition of the fabric under the tab is in mint condition.
The case measures 5.25" x 7.75" x 1-1/8". It looks like there may have been a tag or plaque in the top-center of the lid at one time.
I'm thinking I should clean it up and keep it preserved - it's what the 12-year old me would've expected the adult me to have done by now!