Pop Quiz

S16;BM10,10R22F2G2L2BL4BU2L15G2BE2
H2BF2BG2L4H2E2R3U4R3L6R3D4R2E1R2
U1R2E1R2R1R2F1R2D1R2F1R2U4R3L6R3
D4L2R1G2F2R2

Does anyone have any idea the above represents and where it comes from?  If you don’t know for sure, what would you guess it is?

Note: I know what it is, but before explaining it and tell you what I’ve been playing around with, I’m curious if the above jogs anyone’s memory. If I give to many details, it might spoil the responses. ;-)

UPDATE: I’ve posted the work in progress and a bit of details here.