This was in some cabinets I bought from a hanger. The instrument has a different serial number than what is on the box, but the model number is the same. I think what happened was that someone purchased a new instrument, but failed to return the core.
This may be able to be used as a core, certainly is not airworthy. Has been sitting in my garage for many years.
Also have a spark plug holder I'll throw in. Original owners name is written on the side.
Freely ask any questions. Usually meet at a coffee shop 40th St and Greenway.