The ornamental design for a flask for perfumeryproducts, as shown and described.
FIG. 1 is a perspective front, top and left side view showing the new design.
FIG. 2 is front view thereof, the rear view being a mirror image.
FIG. 3 is a right side view thereof, the left side view being a mirror image.
FIG. 4 is a top plan view thereof, shown at a slightly enlarged scale; and,
FIG. 5 is a bottom view thereof.
The broken lines in FIG. 1 are provided for the purpose of illustrating a medallion with a tassel hanging therefrom and which medallion is held on the flask by a string, which features form no part of the claimed design.