At a revolutionary printing office*

Found - a review in a 'monthly magazine of bibliography' Book Lore (1886) of  a new magazine The Dynamiter : a record of literary bombshells, books old and new, flung into the camp of the orthodox [London : Printed and published for the proprietor by Thomas Shore**, Jun.,] WorldCat shows that it  went to just one issue. The only copy in world libraries is at the British Library in Euston. Amazon list it as 'currently unavailable' assigning it the ASIN number ASIN: B0000EF989. The publisher, and probably the author, seems to have been a minor John Camden Hotten style publisher of the curious, seditious & the scabrous. WorldCat lists another work almost certainly by  by him:

Men V. Machinery. Suggestive Facts and Figures, urging National Control of National Powers of Production. By Thomas Shore. With Preface by H. Halliday Sparling. 20 pp., price 2d.