Have a reprint of the May 1, 1878 WRA Co. catalog.
This was when the "open-tops" were being made, and it says a "lid" will be put on rifles so ordered. But it also says, "A different mode of protecting the lock of the gn from the action of the weather and from dirt will be provided hereafter..."
Obviously, Winchester moved on to providing mortise covers in various models and configurartions. But is anyone aware of some other "mode of protecting" was explored by the company?
Just a wondering mind.....
Thanks,
Hugh