This large, grained leather Bank Bag is stamped The Commercial Bank of Scotland Limited to its linen lining twice with ink.
The form of this square mouth bag is an unusual size, being much taller than you might expect. It has a central sprung push button to lock it with two short straps to further secure it. The bottom has six brass stud feet. This bag doesn't have the standard handles straps that circumvent the body for strength, as other smaller money bags have, so it's unlikely it was meant to take heavy coinage.
The Commercial Bank of Scotland was founded in 1810 in reaction to the public's demand for a bank that promoted the general good rather than solely their own interest. A useful sized bag. Circa 1900.