i recently sent a message to OHAS in search of a dial a grain scale for my son-in-law and they did not reply. From the online catalog it appears that they are no longer in production. Good luck on your search.
I have one of Ohaus-made RCBS 304 dial scales and also wonder what they are worth today. The photo of it below was taken many years ago but it still looks the same, as I have been using an RCBS ChargeMaster powder dispenser & scale for rifle loading and a small digital scale for shotshell loading for the past ten or more years.
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