Challenge Proof Press 1528KA
Greetings, Just acquired a Challenge Proof Press model 1528KA. If you might have ANY information about this press I would greatly appreciate it! PDF’s of Operation or maintenance manuals, anything. And if you own one and would like to do a demo some afternoon, please, please! :) Located in Florida but would travel to get a bit of instruction on this model. Thanks!

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Not exactly the same press but it may be of some help:
http://vandercookpress.info/challenge.html