Number by catalogue:  Michel: 2000   Yvert: 1982   Scott: 2003  

Perforation type: 12x12 ½

Subject:

40 kopecks. The RSFSR. A couple of workers against the factory, railway and hydropower

Topics: Hydroelectricity

Number by catalogue:  Michel: 2006   Yvert: 1980   Scott: 2016  

Perforation type: 12x12 ½

Subject:

40 kopecks. Latvia. A couple of workers against the sea and fields.
On the field we can consider farmer's windmill (wind pump) (see detail)

Topics: Mills within the landscapes Wind pumps and farm windmill Windmills

Number by catalogue:  Michel: 2011   Yvert: 1981   Scott: 2017  

Perforation type: 12x12 ½

Subject:

40 kopecks. Lithuania. Couple working on the background with a large farm.
On the farm we can consider farmer's windmill (wind pump) (see detail)

Topics: Mills within the landscapes Wind pumps and farm windmill Windmills

Number by catalogue:  Michel: 2014   Yvert: 1986   Scott: 2011  

Perforation type: 12x12 ½

Subject:

40 kopecks. Ukraine. Couple working on the background of plant and Dneprovskaya hydropower Station

Topics: Hydroelectricity