I think the Model 52 had the same plunger based on Photo's I have seen. These were way more common than the 69. The 69A was made for some time and likely used the same system.
GPM.
I think the Model 52 had the same plunger based on Photo's I have seen. These were way more common than the 69. The 69A was made for some time and likely used the same system.
GPM.
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