They're back! After about a year of not having these, I managed to snag a large bundle of them!
A fan favorite, the Soviet Trade Union Members Booklets were issued to members of the trade unions. Trade unions during the soviet era were not run the same as unions today. Many of the unions still had to answer to the Communist Party and Government. Despite this, they did manage to improve conditions for workers, especially after Stalin.
 
You can pick either a green or red booklet, but otherwise, they will be picked randomly. Looking at them, the green ones appear to have a sort of coupon system in them, while the red ones do not. I could not find much information for them.  
 
Booklets measure about 7cm across and 10 cm tall.
 
Price is for one booklet. Some will come with photos, but no guarantee that yours will come with one. 
 
Please do expect some fraying, stains, markings, rust (from the staples), and/or dust on them.