TM-Chicago Music Plaques

I have two 8x15 Music Plaques. On the back there is a blue and white label that reads: C100 8X15 D130 Mus. Plaques TL28.  They are Gold on a ivory speckled cut out.  The frames are ivory and gold.  There are three gold instruments in each plaque.  One plaque has a gold tambarine wih bugles. In the middle is a gold violin with gold leaves and on the bottom is gold cherabs with several instruments.  The second plaque follows the same musical theme. At the top is a gold guitar, in the middle is a gold face mask and a soldiers drum and bugles and on the bottom is a gold mantelin with gold leaves and bugles.  These two plaques are intact and have never been taken out of their shadow box.  There are gold hangers on the top of each plaque.  Can someone identify these and what their value might be?