Helped establish the name and surname of the artist

[Liudmila]

Please help set the name and surname of the artist - if at all possible:
This is a piece of a portrait of a small size 22 * 16 cm, paper - watercolor (or bed), a monogram - or rather painted, and 55

Вложение 225725

And she's background is that collecting the genealogical history of the older generation of my family on the crumbs of fragmentary memories, noticed in our old family album on a facsimile signature of an unknown artist to me to draw portraits of my grandfather, dated 1955godom:
http://www.maslovka.ru/viewtopic.php?f=13&t=830