Help to Identify luggage bag

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Need some help looking for a luggage bag to strap on my 1948 rear fender luggage rack. I came across this writeup and love the style of this bag anyone know who makes it? .Will try to reach out to Chris Lastinger he is on the forum but hasnt posted in a long time.

https://hotbike.com/1947-harley-davi...ne-piece-time/