Marina, of course is to deprive them of anonymity
!
Watercolors good, fine, oil is good, especially the latter - a strong, competent painting, a good year, even if the author's name not be so demanded by the market, they are worth.
At least to know what possessed your father, and what you possess.
Unless I made no assumptions, refer to specialists for the attribution of at least the last scene, where there is a signature (by the way, a piece of it - do not tell again, so obviously there is no speculation). And in the manner of "guessing" of the artist is difficult, or it should be a great master, which is well studied and have all the "eye" or to have completely inimitable handwriting in all my works of any period, which happens infrequently. It seems to me.