Hi I have aquired a picture of A Girl with Broom.

I am told by older Друзья that a picture I aquired : A Girl With метла was used in the 74th episode of "Bewitched" the last black and white episode.
Marking on back reads, 74, Rembrandt(1606-1669)
A Girl With Broom.
( Andrew Mellon Collection )
National Gallery of Art Washington DC.

Can someone confirm,, if so a value of its worth I like the picture, don't know if I should insure it?? Thx Ron