Backdrop Support System Frame

FIG. 1 is a top perspective view of a backdrop support system frame showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof; and,

FIG. 8 is a top perspective view of the backdrop support system frame in an environment of use.

The broken lines in the drawings depict portions of the backdrop support system frame that form no part of the claimed design. The additional broken lines only seen in FIG. 8 depict environment and forms no part of the claimed design.