An add posted around town

[Grenore]

Hanging up all around town are several adds written on an old looking parchment. The add states this:

Large amounts of Granite and Limestone are fer sale. Prices may vary. Listed below are the amounts of granite and limestone fer sale.

Granite -
1000 1 1/2ft x 1 1/12ft blocks
465lbs./1
500 3ft x 3ft blocks
930lbs./1

Limestone -
750 1ft x 1ft blocks
318 lbs./1
If yer interested go to the Green Goblin Tavern and look fer a dwarf around 4 feet tall. Go up and ask about it. His name is Grenore.