[time-nuts] HP 10544 oscillator question

[cdelect at juno.com]

Hi,

Reading over an old brochure for the HP 10544B and it touts the use of
"natural" Quartz for the crystal.

Anybody know when they switched over to grown Quartz I.E. late 10544 or
when they went to the 10811??

Thanks,

Corby