Thanks Jay for that information on those chips from the C. W. Rice order cards. There are no Burt Co. order cards for those chips, but David Sarles recently made the Burt Co. ledgers available to the ChipGuide, and those chips are listed there. For Burt chips missing order card information, those ledger entries are being very slowly formatted and uploaded to the guide.

Courtesy of the ChipGuide.

Do you mind if I add that C. W. Rice information you posted to the ChipGuide entry?