Table Medal "In Honour Of The 60th Anniversary Of Creation Of The Soviet Union".

[dj_errant]

I recently purchased this 8.5cm medallion in Riga, Latvia. Rough translation of the phrases on the front and back are:
Front - "In honor of the 60th anniversary of soviet education"
Back - "III Vsearmeysky gathering of tourists"
Back Center - "Armed forces of the Soviet Union"
Back Bottom - "The management of tourism and excursions ?? Soviet Union"

I'm wondering if anybody can define "vsearmeysky" and if anybody can tell me about these large medallions (I assume there's many different ones for many different occasions)? I have a decent collection of medals and orders (fairly easy to find at flea markets in Europe) but this is the first I've seen in 4 years of collecting. Is there a website or forum where I can get more info about these?

I hate to assign a value (just knowing more about it is my primary goal), but a rough estimate would be informative.

Thanks in advance,
dj_errant