Old leather doctor's bag with key and double handles

Description

Bag is made of leather but lined with naugahyde.  Some of the black coating on the naugahyde is worn off in places that have had a lot of flex.  But the leather is all intact and there are no holes worn through either the leather or the naugahyde.  There is a pouch on the inside of the bag along one side that is intact.  That too is made from naugahyde which has some of the black coating missing (see pic).The key is stamped with the name Presto and the bottom of the bag is stamped with 728-95 and below that is the number 16.  the latch strap is in very good shape and it works perfectly.  I cannot see a maker's name on the bag anywhere.  The bag has double handles, one of which has a small amount of leather missing from wear (see pics) but both handles are still firmly attached.
This was my great grandfather's bag which he used to carry his barber tools.