Dating older Shure microphones

FAQ #2262 Updated January 19, 2011

Question:

I'm looking at a Shure 707A (manufactured from 1940 through 1970) with a serial number of B2878. Can an approximate manufacture date be estimated from the serial number? If so is there a resource for narrowing manufacture dates through this methodology for other older discontinued Shure microphones? If not, is there another way to narrow the manufacture date?

Answer:

Can an approximate manufacture date be estimated from the serial number? * No.

If so is there a resource for narrowing manufacture dates through this methodology for other older discontinued Shure microphones?
* No.

If not, is there another way to narrow the manufacture date?
* No.

Sorry, but Shure never anticipated the vintage mic market and the interest in "when a product was made".

Shure products are gradually modified and changed over the years. These changes are documented via internal/confidential Engineering Change Orders (ECO). When a product has been discontinued, its ECOs are archived off-site and eventually destroyed. This is necessary as a company creates a lot of paperwork in 80+ years.

Perhaps a vintage mic collector may have useful information for you.

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