Soot, I've seen the site of the Museum of Artillery, Engineers and Signal Corps. in St. Petersburg, Russia before but this site has photos of pieces of artillery that weren't shown there. The mortars that were cast with an integral base, like eprouvettes but also having one trunnion in front of the base; I've never seen anything like these before, I've also never seen a bed like the one that one of these mortars is mounted on. The leveling mechanism that is attached on the end of the carriage trail is also an new one on me. There's also that gun that appears to be a swivel howitzer with a long tiller and all the fine bronze cast mouldings on some of these other art works, that can now be seen in clear enlargement. I spent quite awhile looking over these pictures, this is a great site, thanks for posting it.