Whaaa???

Not sure what this is, but apparently very important. Husband Dear called me from the Museum and was grilling me about this piece of paper he left on the table. "The number on the top, right under the squiggle? See it? Yea, this is NOT the number I need. There should be another number, a little to the side..."

So I texted him the whole bloody drawing.

The only picture I took today :-)