The Second Doctor's Recorders... anyone?

[thealphadoctor]

I just finished 'The Tenth Planet', after spending a total of 3 years in-and-out trying to get through the first couple of Doctors with all the missing stories. It's been a day... and I have been rather obsessed ever since with finding the makes and designs of the second doctor's recorders. Does anybody have one, have a memory of seeing one, or know where I can find one? 

Thanks!

-TheAlphaDoctor