National Pressure Cooker Co. No. 7 Canner
Someone gave me a canner that looks to be really old. It is a National Pressure Cooker Co. No. 7.
I have no idea where to buy parts for this.
What appears to be the vent tube can unscrew in two places (the very top & at the bottom, which exposes a spring). It has holes in the body of it and a square hole on top that I'm assuming a counterweight goes on?
What appears to be a pressure valve doesn't have any rubber material that I see.
Is this something that I can buy parts for? Does anyone have a picture and/or owner's manual so I can see the original parts that came on it & compare?
Does anyone know about when it dates back to?