Hi Corvus.
My protractor was made in England by Blundell Harling. It is their 130mm version and they still make these and a larger 250mm version too.
See here:
http://www.blundellharling.com/products.aspI didn't notice any Romer scales on the baseplate of the Suunto M3 compass. I attach a photo of a Suunto M3 compass that I found on their web site, but it has no Romer scales. What does yours look like? (The version that I found on their web site has 1:15,000, 1:20,000, 1:25,000 and 1:50,000 scales, but not the right-angle Romer scale.) I think that I am right in saying that Suunto also own the Recta brand and the Recta 420 & 420G compasses do have a 1:50,000 Romer scale on their baseplate, but I haven't come across Romer scales on any of the Suunto branded compasses. Does the baseplate on your M3 look like the attached photo, or is it different? (I am assuming if it has Romer scales, it is different.)
I have a few Silva compasses (5 at last count), but haven't had much luck with Suunto compasses. I have had two Suunto diving compasses and both expired after not a lot of use. (Seawater is not kind to compasses.) I have also had a Suunto GPS Global baseplate compass and, from memory, that one lasted for some 12 or 13 years. I mostly rely on my Silva Expedition 54 for walking in Australia and a Silva Voyager 8010, when I am walking in Asia. The Silva Voyager 8010 has a bright yellow baseplate stamped 'Made in USA', which means that it, (and the actual compass too), were made by Brunton when the two companies had a tie up. The The Silva Voyager 8010 is a globally balanced compass, but it does not have any Romer scales marked on its baseplate.
rucksack