NOS GE 1073 Bulbs in original 10 bulb carton.

Each bulb is marked "GE 1073 QD5".  The original shipping crate is marked April 1978, so these might be nearly 50 years old although each individual carton isn't marked, so I can't be sure.

I have done a continuity check on each bulb with a multimeter.

Please see pictures for details of item and condition; reach out with any questions.