Yes, this is true!
The Indus Valley people who lived in the place which is today next to Harappa in Pakistan left behing them some inscriptions of these pictographs, which we can see today.
There are around 500 known pictographs in this script. Some of them are easy to decipher: for example "arrow" looks like an arrow.
It was based on their ability to trade and the actual trade that they commenced during these times. They were known for different artistic goods which could be counted under the category of painted pottery. This is something that the Minoan success was famous for.
It depends how much each pound of bananas are