I have a rare old Russian Rubik's cubes for sale.
Condition cube: excellent, never used - as photos. It was made in 1983's. Measures: 5.5 cm (2 1/4").
Condition box: very good.
Made in the USSR.
Manufacturer: KOMBINAT NADOMNOGO TRUDA (Combine home work), the city of Ryazan.
Manufactured under license Politoys.
The price is $35 including shipping cost.
Payment: PayPal only.
If anyone is interested send me a PM.