Therin of Andor wrote:
The catalogs specified if your tribble was fitted with a dog-toy squeaker. I'm fairly sure those above numbers were non-squeakers. Squeaking tribbles were a later addition.
The squeaking one I have from Lincoln is quite flat, with long white fur. I guess if you hid the squeaker deep inside a spherical tribble, it would be harder to squeak.
I wonder what years LE had issued the Tribbles that did squeak, and which catalog #s would those ones be? I know they probably don't have those ones now, after which point the electronic Tribbles with the authentic Tribble sounds had become commonplace.