Hey. Can anyone tell me about "caboose" cels? I recently aquired a couple of cels that have the cel, the douga, and over the top of the cel there is a partial cel with "ka-bu-su" written in corner where the cel number usually is. Both are from Sunrise productions. I don't know if this is a Sunrise trademark, or if there are other animation companies that use these cabooses, and I would like to know what they are for, and if they are common or rare. I have only seen these two with the cabooses with them, and everyone I ask has never heard of them before.

Email me with information if anyone knows anything, please.

Faye