Thanks March! I`ve checked a 2007 Price List, same price.
In the meantime I`ve did some research and found an interesting and useful article in `Almanah Filatelic 1985` by Iosif Micu- `Erori si varietati din perioada 1952-1962` page 145. (Errors and varieties of the 1952-1962 issues). Here he signals some (guess minor) varieties too (not mentioned in the so far the most detailed Romanian Stamp Catalogue `74).
I found two of the mentioned varieties, highlighted in green circle:
1. -Man / named `opinci cu pinteni`= `sandal with spur` - this variety occurs on sheet in the 2 stamp of the 6th row:
2. -Woman / flaw (coma) between 7 and 5, appears on 5th stamp 6th row:
Many more interesting varieties mentioned in the article (ex: flaw in form of a drill bit on left trouser-leg etc.).