123. Deposits with bankers or traders.

Where a customer leaves valuables with his bankers1 for safe custody, or allows a printer or any other trader to retain his plates or chattels upon which the trader may have worked, it is by no means certain that the bailment is gratuitous2 as opposed to one for reward to the bailee3. Even if no specific charge for keeping is made, it may well be that the custodian indirectly obtains some consideration for the service, either in being allowed to continue to keep the customer's account