RAD on the rampage.

I don't seem to be able to stop myself these days.
Got this on the 'bay last night (couldn't sleep, so went looking for shiny steel)
and paid USD$33.50.

"Thornhill 144 New Bond Street" . I'm assuming this is/was a retailer rather than a manufacturer ?
Vendor says it's 6/8", and looks in great condition except for a broken scale.
Top and bottom jimps are always a nice feature for me.
RAD is sated, now to get some sleep !!
Attachment 148111
Attachment 148112
Attachment 148113
Attachment 148114
P.S. 144-146 New Bond St. is now the Halcyon Art Gallery.
Attachment 148115

I did find this:
http://www.antiquebox.org/guide/make...ers/thornhill/