Starting from the left, we have two Orders of Labor Glory, 1st class. Created in 1974, these were meant to be awarded for exceptional labor achievements.

Then we have three Orders of the Red Star, established in 1930 and awarded to Armed Force Personnel for exceptional effort in the defense of the Soviet Union.

Then there is - I think since it says October Revolution on top - the Order of the October Revolution, created for the 50th anniversary of the Revolution and awarded to individuals or groups who furthered the cause of Communism.

And the last one is Order for Service to the Homeland in the Armed Forces of the USSR, 1st class (I think), established in 1974 and awarded for exemplary service in the Armed Forces.

Unfortunately, I can't give you any info if they are worth something or not but I hope this helps.