ARTEL
| Date | Clue |
|---|---|
| 2019-06-29 | Soviet workers' group |
| 2016-06-11 | Soviet co-op |
| 2010-12-02 | Old Russian co-op |
| 2010-03-14 | Soviet co-op |
| 2006-07-16 | Soviet cooperative |
| 2003-06-07 | Russian cooperative |
| 1999-10-03 | Soviet co-op |
| 1996-07-13 | Soviet cooperative |
| 1995-08-30 | Soviet co-op |
| 1994-12-28 | Soviet cooperative |
| 1994-12-21 | Russian co-op |
| 1994-09-01 | Soviet workers' cooperative |