Little Mermaid Poster - Weinstock's Give Away

[Darrin66]

I worked at Weinstock's in 1989 and was able to get ahold of a Little Mermaid poster that they were giving away. The poster is approximately 23 X 32 in size and has a printed / stamped number on the back. I was wondering if anybody has an idea on valuation of this item. Any help would be appreciated.

Thanks,

Darrin