I have a record which speaks of "Date of Record 08/21/1907, Date of
Instrument 07/31/1907"

It has to do with deaths and burial dates

What is an "Instrument here please?
David Lewin
London

If this information is from a transcription, perhaps the word should have been transcribed "interment".

David, my guess is that this is referring to the date of the original legal document.  An instrument in contracts/legal terminology is usually a formal legally binding  signed document
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Cynthia Hollinsworth

Perhaps the date of instrument is the date of signing of the certificate and the date of record is the filing date with the registering authority.

It would help to know where this happened.  Link to original?
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Paul Hattori
London UK

SHADUR, SADUR, SHADER, SADER, CHADOUR, SADOUR, SHADOUR,  SZADUR from Salakas, Lithuania
MINDEL, MINDELL from Utena and Vyzuonos, Lithuania
FELLER from Pabrade, Lithuania

Yes it could be a transcription error for "internment".  But if it is not an error, an "Instrument" in England is a document by which something of legal significance is done.  For example a document notifying the authorities of a death (a death certificate) might be described as an "instrument".  In this case the death might have taken place on 30 July, the death certificate might have been completed on 31 July and the entry in the register of deaths might have been made on 21 Aug.

Thanks for responding

I have no paper - or image - records

I am working on a 30K collection of burials in Mokkom Sholom / Bayside / Acacia cemeteries assembled by Florence Marmor

David