I post this every year or two. It helps if you find a relic with a patent # and want to put an approximate date to it. :interesting: Jeff
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I post this every year or two. It helps if you find a relic with a patent # and want to put an approximate date to it. :interesting: Jeff
Nice thumbsup01 thanks Jeff!
Very useful info, thanks
Will be very helpful, Thanks
Nice resource Jeff. I saved the image file for easy future reference and something you could even put on your mobile device in the field for quick dating!
Awesome resource. Thanks for posting! :grin: