I have been approached by a magazine which would like to use a photograph I have taken of a stairwell in the Louvre to accompany a piece they are doing on an individual who from what I gather crafted the ironwork seen in the stairwell (I received an e-mail from them last week, then a follow-up this week). They indicated in the second e-mail they would pay for the use of the photo (that was not mentioned in the original e-mail).
My question is am I putting myself at any risk agreeing to let them publish this? As in violating any French laws, or Louvre copyrights or other restrictions? (The museum web-site was useless in providing any answers about photography in their facility, other than a link to an agency they use regarding photos). I sent an inquiry about this to the Louvre e-mail contact last week about this but heard nothing back.
Link to photo in question provided below. Photo was taken in 2009 while on family vacation, and obviously there are no release forms.http://andrewkulin.photoshelter.com/gallery-image/France-and-Belgium/G0000mNVtHL.IxP8/I0000VC2Dc4WGlnY
Any insight or advice would be appreciated. If there is any reasonable potential for someone to hassle me over this (as in legal stuff) I would politely decline the opportunity.