This glass piggy bank is a mystery. It appears to be made so that a wedge is placed in the coin slot and tapped lightly with a hammer to split the bank into two pieces. I guess it could be glued back together if you did need to open it that way. On each side of the piggy's flank is "PIGGY BANK" in circles. It's in very good condition.
Approximately 4.25 inches long by 3.75 inches tall.