Original tach cluster

[Vicente Aceves]

Hello. I got this tach cluster and bezel with a bundle of other parts.

It was from a restoration shop that completely restored a customer’s K5 Blazer.

The owner of the shop was allowed to keep some of the old parts that were going to be replaced. He told me that the parts were all original to the truck. The SPID was not available to me, as the truck had been gone from the shop for some time.

How can I tell if this is an original tach cluster?

I’d like to sell it, so I’d also like to know what it’s worth if it’s original, or what it’s worth if it’s a cluster with a tach added.

Thanks for any help. Vinnie