Antique HMSO SO Stationery office Letter Opener, in a blade sheaf.  Dense harwood handle stamped J Clarke & Son.  The sheaf appears to be a form of bakerlite.  Blade is Sheffield Stainless Steel.

In very good antique used condition, there is some pitting on the blade.

INTER-WAR YEARS 1920'S - 30'S.

Please see pictures as they form part of the description.

I am selling a total of 3 of these letter openers, I am happy to combine postage if buying more than one.

Please see my other items.