Re: calf skin heads
Calfskin heads will last a long time. (many years) They have to be tuned every time that you play the drum. Changes in weather, humidity, and temp affect them a lot.
Back in the day some drums had sockets for electric light bulbs inside of them. The bulb was kept lit to keep the heads dry and tight when the drum was not in use.
The bulb and socket could be removed through a small door in the side of the drum for playing.
I kind of like old drums:)