This is allocated to DS:56EC.
First two bytes define number of sprites in the file (209 (0xD1)). The sprite content is shown in the below image (19 x 11 sprites):
Each sprite is 8x8 pixels. However, when stored in the FONT file, it is stored 4x8 (32 bytes) rather than 64 bytes. The nibbles of the 4 bytes are swapped around to form an 8x8 image.